1 files changed, 3 insertions, 0 deletions
diff --git a/java/java-analysis-api/src/com/intellij/openapi/roots/LanguageLevelModuleExtension.java b/java/java-analysis-api/src/com/intellij/openapi/roots/LanguageLevelModuleExtension.java
index 76ab3643cb79..c7068ec43482 100644
--- a/java/java-analysis-api/src/com/intellij/openapi/roots/LanguageLevelModuleExtension.java
+++ b/java/java-analysis-api/src/com/intellij/openapi/roots/LanguageLevelModuleExtension.java
@@ -76,6 +76,9 @@ public class LanguageLevelModuleExtension extends ModuleExtension<LanguageLevelM
         //bad value was stored
       }
     }
+    else {
+      myLanguageLevel = null;
+    }
   }
 
   @Override