diff --git a/ChangeLog b/ChangeLog
index 133393cbc..255c17be3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2008-09-09  Zoltan Varga  <vargaz@gmail.com>
+
+	* glib/GType.cs (FindTypeInReferences): Skip dynamic assemblies.
+
 2008-09-08  Mike Kestner  <mkestner@novell.com>
 
 	* glib/GType.cs: beef up the referenced assembly loading code to
diff --git a/glib/GType.cs b/glib/GType.cs
index 57cf8741f..1d59da477 100755
--- a/glib/GType.cs
+++ b/glib/GType.cs
@@ -160,6 +160,9 @@ namespace GLib {
 			visited [asm] = asm;
 			Type result = asm.GetType (type_name);
 			if (result == null) {
+				if (asm is System.Reflection.Emit.AssemblyBuilder)
+					/* These don't support Location */
+					return null;
 				string asm_dir = Path.GetDirectoryName (asm.Location);
 				foreach (AssemblyName ref_name in asm.GetReferencedAssemblies ()) {
 					Assembly ref_asm;