diff --git a/src/Main/Base/Project/Src/Project/CompilableProject.cs b/src/Main/Base/Project/Src/Project/CompilableProject.cs
index 75b7cd98bc..5d6f5978d9 100644
--- a/src/Main/Base/Project/Src/Project/CompilableProject.cs
+++ b/src/Main/Base/Project/Src/Project/CompilableProject.cs
@@ -377,6 +377,8 @@ namespace ICSharpCode.SharpDevelop.Project
 		protected override void OnPropertyChanged(ProjectPropertyChangedEventArgs e)
 		{
 			base.OnPropertyChanged(e);
+			if (e.PropertyName == "TargetFrameworkVersion")
+				CreateItemsListFromMSBuild();
 			if (!isLoading) {
 				if (reparseReferencesSensitiveProperties.Contains(e.PropertyName)) {
 					ParserService.Reparse(this, true, false);