diff --git a/lib/ARCMigrate/Transforms.cpp b/lib/ARCMigrate/Transforms.cpp
index 86812a5..96c472c 100644
--- a/lib/ARCMigrate/Transforms.cpp
+++ b/lib/ARCMigrate/Transforms.cpp
@@ -302,6 +302,7 @@
 
 class ASTTransform : public RecursiveASTVisitor<ASTTransform> {
   MigrationContext &MigrateCtx;
+  typedef RecursiveASTVisitor<ASTTransform> base;
 
 public:
   ASTTransform(MigrationContext &MigrateCtx) : MigrateCtx(MigrateCtx) { }
@@ -315,7 +316,7 @@
            E = MigrateCtx.traversers_end(); I != E; ++I)
       (*I)->traverseObjCImplementation(ImplCtx);
 
-    return true;
+    return base::TraverseObjCImplementationDecl(D);
   }
 
   bool TraverseStmt(Stmt *rootS) {
diff --git a/test/ARCMT/GC.m b/test/ARCMT/GC.m
index e49bca8..2884679 100644
--- a/test/ARCMT/GC.m
+++ b/test/ARCMT/GC.m
@@ -66,4 +66,8 @@
 
 @implementation I4Impl
 @synthesize pw1, pw2, ps, pds, pds2;
+
+-(void)test1:(CFTypeRef *)cft {
+  id x = NSMakeCollectable(cft);
+}
 @end
diff --git a/test/ARCMT/GC.m.result b/test/ARCMT/GC.m.result
index 67a70e3..aaa5ee5 100644
--- a/test/ARCMT/GC.m.result
+++ b/test/ARCMT/GC.m.result
@@ -61,4 +61,8 @@
 
 @implementation I4Impl
 @synthesize pw1, pw2, ps, pds, pds2;
+
+-(void)test1:(CFTypeRef *)cft {
+  id x = CFBridgingRelease(cft);
+}
 @end