diff --git a/src/storm-parsers/parser/PrismParser.h b/src/storm-parsers/parser/PrismParser.h
index 9153f64bd..c86e75324 100644
--- a/src/storm-parsers/parser/PrismParser.h
+++ b/src/storm-parsers/parser/PrismParser.h
@@ -37,7 +37,6 @@ namespace storm {
                 formulas.clear();
                 globalBooleanVariables.clear();
                 globalIntegerVariables.clear();
-                moduleToIndexMap.clear();
                 players.clear();
                 playerControlledModules.clear();
                 playerControlledCommands.clear();