diff --git a/ICSharpCode.NRefactory.CSharp/Resolver/OverloadResolution.cs b/ICSharpCode.NRefactory.CSharp/Resolver/OverloadResolution.cs
index a4efe127f5..13aecd79d8 100644
--- a/ICSharpCode.NRefactory.CSharp/Resolver/OverloadResolution.cs
+++ b/ICSharpCode.NRefactory.CSharp/Resolver/OverloadResolution.cs
@@ -950,6 +950,8 @@ namespace ICSharpCode.NRefactory.CSharp.Resolver
 			if (member == null)
 				throw new InvalidOperationException();
 			
+			if (this.IsExtensionMethodInvocation && member is SpecializedMethod)
+				((SpecializedMethod)member).IsExtendedExtensionMethod = true;
 			return new CSharpInvocationResolveResult(
 				this.IsExtensionMethodInvocation ? new TypeResolveResult(member.DeclaringType) : targetResolveResult,
 				member,
diff --git a/ICSharpCode.NRefactory/TypeSystem/Implementation/SpecializedMethod.cs b/ICSharpCode.NRefactory/TypeSystem/Implementation/SpecializedMethod.cs
index 087bf89f74..5636a5b457 100644
--- a/ICSharpCode.NRefactory/TypeSystem/Implementation/SpecializedMethod.cs
+++ b/ICSharpCode.NRefactory/TypeSystem/Implementation/SpecializedMethod.cs
@@ -153,6 +153,14 @@ namespace ICSharpCode.NRefactory.TypeSystem.Implementation
 				accessorOwner = value;
 			}
 		}
+
+		/// <summary>
+		/// Gets/Sets whether the method is an extension method that are being called using extension method syntax.
+		/// </summary>
+		public bool IsExtendedExtensionMethod {
+			get;
+			set;
+		}
 		
 		public override IMemberReference ToMemberReference()
 		{