diff --git a/src/Main/ICSharpCode.SharpDevelop.Dom/Project/Src/ProjectContent/ProjectContentRegistry.cs b/src/Main/ICSharpCode.SharpDevelop.Dom/Project/Src/ProjectContent/ProjectContentRegistry.cs
index 22019d4322..6641f56c9b 100644
--- a/src/Main/ICSharpCode.SharpDevelop.Dom/Project/Src/ProjectContent/ProjectContentRegistry.cs
+++ b/src/Main/ICSharpCode.SharpDevelop.Dom/Project/Src/ProjectContent/ProjectContentRegistry.cs
@@ -234,6 +234,10 @@ namespace ICSharpCode.SharpDevelop.Dom
 				}
 				
 				if (pc != null) {
+					ReflectionProjectContent reflectionProjectContent = pc as ReflectionProjectContent;
+					if (reflectionProjectContent != null && reflectionProjectContent.AssemblyFullName != null) {
+						contents[reflectionProjectContent.AssemblyFullName] = pc;
+					}
 					contents[itemInclude] = pc;
 					contents[itemFileName] = pc;
 				}