diff --git a/src/Main/Base/Project/Src/Services/ParserService/ParserService.cs b/src/Main/Base/Project/Src/Services/ParserService/ParserService.cs
index 4aa56b2894..13b14ec0c8 100644
--- a/src/Main/Base/Project/Src/Services/ParserService/ParserService.cs
+++ b/src/Main/Base/Project/Src/Services/ParserService/ParserService.cs
@@ -463,7 +463,8 @@ namespace ICSharpCode.SharpDevelop.Parser
 					if (parseInfo != null && this.activeListeners != null)
 						this.activeListeners(parseInfo, null);
 				}
-				RaiseParseInformationUpdated(new ParseInformationEventArgs(parseInfo, null));
+				if (parseInfo != null)
+					RaiseParseInformationUpdated(new ParseInformationEventArgs(parseInfo, null));
 			}
 			
 			void SnapshotFileContentForAsyncOperation(ref ITextSource fileContent, out bool lookupOpenFileOnTargetThread)