diff --git a/src/Main/Base/Project/Src/Editor/Commands/GoToDefinition.cs b/src/Main/Base/Project/Src/Editor/Commands/GoToDefinition.cs
index 7a2649e14d..30af517d59 100644
--- a/src/Main/Base/Project/Src/Editor/Commands/GoToDefinition.cs
+++ b/src/Main/Base/Project/Src/Editor/Commands/GoToDefinition.cs
@@ -15,6 +15,9 @@ namespace ICSharpCode.SharpDevelop.Editor.Commands
 	{
 		protected override void RunImpl(ITextEditor editor, int offset, ResolveResult symbol)
 		{
+			if (symbol == null)
+				return;
+			
 			FilePosition pos = symbol.GetDefinitionPosition();
 			if (pos.IsEmpty) {
 				IEntity entity;