diff --git a/src/storm-parsers/parser/ValueParser.h b/src/storm-parsers/parser/ValueParser.h
index 768be44ad..777db0679 100644
--- a/src/storm-parsers/parser/ValueParser.h
+++ b/src/storm-parsers/parser/ValueParser.h
@@ -19,6 +19,8 @@ namespace storm {
              * Constructor.
              */
             ValueParser() : manager(new storm::expressions::ExpressionManager()), parser(*manager), evaluator(*manager) {
+                // Set empty mapping to enable expression creation even without parameters
+                parser.setIdentifierMapping(identifierMapping);
             }
 
             /*!