diff -r c0740249963c -r b01ee7446984 src/SemanticAnalysis.cpp
--- a/src/SemanticAnalysis.cpp	Sat Aug 04 20:12:20 2012 -0700
+++ b/src/SemanticAnalysis.cpp	Sat Aug 04 21:06:47 2012 -0700
@@ -1055,7 +1055,15 @@
         return true;
     }
 
-    if (given->isEnum() || given->isFunction()) {
+    if (actual->isStruct()) {
+        if (!given->isStruct() || actual != given) {
+            typeMismatch(node, actual, given);
+            return false;
+        }
+        return true;
+    }
+
+    if (given->isEnum() || given->isFunction() || given->isStruct()) {
         typeMismatch(node, actual, given);
         return false;
     }