diff --git a/resources/examples/testfiles/mdp/unassigned-variables.jani b/resources/examples/testfiles/mdp/unassigned-variables.jani
new file mode 100644
index 000000000..365fa726e
--- /dev/null
+++ b/resources/examples/testfiles/mdp/unassigned-variables.jani
@@ -0,0 +1,210 @@
+{
+    "actions": [],
+    "automata": [
+        {
+            "edges": [
+                {
+                    "destinations": [
+                        {
+                            "assignments": [
+                                {
+                                    "comment": "x <- 0",
+                                    "ref": "x",
+                                    "value": 0
+                                }
+                            ],
+                            "location": "l",
+                            "probability": {
+                                "comment": "(c / 2)",
+                                "exp": {
+                                    "left": "c",
+                                    "op": "/",
+                                    "right": 2
+                                }
+                            }
+                        },
+                        {
+                            "assignments": [
+                                {
+                                    "comment": "x <- (x + 1)",
+                                    "ref": "x",
+                                    "value": {
+                                        "left": "x",
+                                        "op": "+",
+                                        "right": 1
+                                    }
+                                }
+                            ],
+                            "location": "l",
+                            "probability": {
+                                "comment": "((2 - c) / 2)",
+                                "exp": {
+                                    "left": {
+                                        "left": 2,
+                                        "op": "-",
+                                        "right": "c"
+                                    },
+                                    "op": "/",
+                                    "right": 2
+                                }
+                            }
+                        }
+                    ],
+                    "guard": {
+                        "comment": "(x < 4)",
+                        "exp": {
+                            "left": "x",
+                            "op": "<",
+                            "right": 4
+                        }
+                    },
+                    "location": "l"
+                }
+            ],
+            "initial-locations": [
+                "l"
+            ],
+            "locations": [
+                {
+                    "name": "l"
+                }
+            ],
+            "name": "first",
+            "variables": [
+                {
+                    "initial-value": 0,
+                    "name": "x",
+                    "type": {
+                        "base": "int",
+                        "kind": "bounded",
+                        "lower-bound": 0,
+                        "upper-bound": 4
+                    }
+                },
+                {
+                    "initial-value": 1,
+                    "name": "c",
+                    "type": "real"
+                }
+            ]
+        },
+        {
+            "edges": [
+                {
+                    "destinations": [
+                        {
+                            "assignments": [
+                                {
+                                    "comment": "y <- 0",
+                                    "ref": "y",
+                                    "value": 0
+                                }
+                            ],
+                            "location": "l",
+                            "probability": {
+                                "comment": "((c + 1) / 2)",
+                                "exp": {
+                                    "left": {
+                                        "left": "c",
+                                        "op": "+",
+                                        "right": 1
+                                    },
+                                    "op": "/",
+                                    "right": 2
+                                }
+                            }
+                        },
+                        {
+                            "assignments": [
+                                {
+                                    "comment": "y <- (y + 1)",
+                                    "ref": "y",
+                                    "value": {
+                                        "left": "y",
+                                        "op": "+",
+                                        "right": 1
+                                    }
+                                }
+                            ],
+                            "location": "l",
+                            "probability": {
+                                "comment": "((1 - c) / 2)",
+                                "exp": {
+                                    "left": {
+                                        "left": 1,
+                                        "op": "-",
+                                        "right": "c"
+                                    },
+                                    "op": "/",
+                                    "right": 2
+                                }
+                            }
+                        }
+                    ],
+                    "guard": {
+                        "comment": "(y < 4)",
+                        "exp": {
+                            "left": "y",
+                            "op": "<",
+                            "right": 4
+                        }
+                    },
+                    "location": "l"
+                }
+            ],
+            "initial-locations": [
+                "l"
+            ],
+            "locations": [
+                {
+                    "name": "l"
+                }
+            ],
+            "name": "second",
+            "variables": [
+                {
+                    "initial-value": 0,
+                    "name": "y",
+                    "type": {
+                        "base": "int",
+                        "kind": "bounded",
+                        "lower-bound": 0,
+                        "upper-bound": 4
+                    }
+                },
+                {
+                    "name": "c",
+                    "type": "int"
+                }
+            ]
+        }
+    ],
+    "constants": [
+        {
+            "name": "c",
+            "type": "int",
+            "value": 0
+        }
+    ],
+    "features": [
+        "derived-operators"
+    ],
+    "jani-version": 1,
+    "name": "realVariables",
+    "properties": [],
+    "restrict-initial": {
+        "exp": true
+    },
+    "system": {
+        "elements": [
+            {
+                "automaton": "first"
+            },
+            {
+                "automaton": "second"
+            }
+        ]
+    },
+    "type": "mdp",
+    "variables": []
+}
diff --git a/src/test/storm/builder/ExplicitJaniModelBuilderTest.cpp b/src/test/storm/builder/ExplicitJaniModelBuilderTest.cpp
index 77cb171cd..5d632e56a 100644
--- a/src/test/storm/builder/ExplicitJaniModelBuilderTest.cpp
+++ b/src/test/storm/builder/ExplicitJaniModelBuilderTest.cpp
@@ -147,3 +147,11 @@ TEST(ExplicitJaniModelBuilderTest, FailComposition) {
 
     STORM_SILENT_ASSERT_THROW(storm::builder::ExplicitModelBuilder<double>(janiModel).build(), storm::exceptions::WrongFormatException);
 }
+
+TEST(ExplicitJaniModelBuilderTest, unassignedVariables) {
+    storm::prism::Program program = storm::parser::PrismParser::parse(STORM_TEST_RESOURCES_DIR "/mdp/unassigned-variables.jani");
+    storm::jani::Model janiModel = program.toJani();
+    std::shared_ptr<storm::models::sparse::Model<double>> model = storm::builder::ExplicitModelBuilder<double>(janiModel).build();
+    EXPECT_EQ(25ul, model->getNumberOfStates());
+    EXPECT_EQ(81ul, model->getNumberOfTransitions());
+}