diff --git a/src/storm/builder/JaniGSPNBuilder.h b/src/storm/builder/JaniGSPNBuilder.h
index bab976433..46c0fb095 100644
--- a/src/storm/builder/JaniGSPNBuilder.h
+++ b/src/storm/builder/JaniGSPNBuilder.h
@@ -39,7 +39,7 @@ namespace storm {
                     storm::jani::Variable* janiVar = nullptr;
                     if (!place.hasRestrictedCapacity()) {
                         // Effectively no capacity limit known
-                        janiVar = new storm::jani::UnboundedIntegerVariable(place.getName(), expressionManager->declareIntegerVariable(place.getName()), expressionManager->integer(place.getNumberOfInitialTokens()), false);
+                        janiVar = new storm::jani::UnboundedIntegerVariable(place.getName(), expressionManager->declareIntegerVariable(place.getName()), expressionManager->integer(place.getNumberOfInitialTokens()));
                     } else {
                         assert(place.hasRestrictedCapacity());
                         janiVar = new storm::jani::BoundedIntegerVariable(place.getName(), expressionManager->declareIntegerVariable(place.getName()), expressionManager->integer(place.getNumberOfInitialTokens()), expressionManager->integer(0), expressionManager->integer(place.getCapacity()));
diff --git a/src/storm/parser/JaniParser.cpp b/src/storm/parser/JaniParser.cpp
index 30dd1fc70..4e1bf346d 100644
--- a/src/storm/parser/JaniParser.cpp
+++ b/src/storm/parser/JaniParser.cpp
@@ -609,7 +609,8 @@ namespace storm {
                         }
                         return std::make_shared<storm::jani::UnboundedIntegerVariable>(name, expressionManager->declareIntegerVariable(exprManagerName), initVal.get(), transientVar);
                     }
-                    return std::make_shared<storm::jani::UnboundedIntegerVariable>(name, expressionManager->declareIntegerVariable(exprManagerName), transientVar);
+                    assert(!transientVar); // Checked earlier.
+                    return std::make_shared<storm::jani::UnboundedIntegerVariable>(name, expressionManager->declareIntegerVariable(exprManagerName));
                 } else if(variableStructure.at("type") == "clock") {
                     STORM_LOG_THROW(false, storm::exceptions::InvalidJaniException, "Unsupported type 'clock' for variable '" << name << "' (scope: " << scopeDescription << ")");
                 } else if(variableStructure.at("type") == "continuous") {
diff --git a/src/storm/storage/jani/UnboundedIntegerVariable.cpp b/src/storm/storage/jani/UnboundedIntegerVariable.cpp
index 913d54af4..8cc8ede9f 100644
--- a/src/storm/storage/jani/UnboundedIntegerVariable.cpp
+++ b/src/storm/storage/jani/UnboundedIntegerVariable.cpp
@@ -7,7 +7,7 @@ namespace storm {
             // Intentionally left empty.
         }
         
-        UnboundedIntegerVariable::UnboundedIntegerVariable(std::string const& name, storm::expressions::Variable const& variable, bool transient) : Variable(name, variable) {
+        UnboundedIntegerVariable::UnboundedIntegerVariable(std::string const& name, storm::expressions::Variable const& variable) : Variable(name, variable) {
             // Intentionally left empty.
         }
         
diff --git a/src/storm/storage/jani/UnboundedIntegerVariable.h b/src/storm/storage/jani/UnboundedIntegerVariable.h
index f1b857469..16f54b723 100644
--- a/src/storm/storage/jani/UnboundedIntegerVariable.h
+++ b/src/storm/storage/jani/UnboundedIntegerVariable.h
@@ -10,7 +10,7 @@ namespace storm {
             /*!
              * Creates an unbounded integer variable without initial value.
              */
-            UnboundedIntegerVariable(std::string const& name, storm::expressions::Variable const& variable, bool transient=false);
+            UnboundedIntegerVariable(std::string const& name, storm::expressions::Variable const& variable);
             /*!
              * Creates an unbounded integer variable with initial value.
              */