1 files changed, 3 insertions, 2 deletions
diff --git a/lib/Sema/SemaDeclObjC.cpp b/lib/Sema/SemaDeclObjC.cpp
index f4e2fb3205..ebb0cb5463 100644
--- a/lib/Sema/SemaDeclObjC.cpp
+++ b/lib/Sema/SemaDeclObjC.cpp
@@ -817,9 +817,10 @@ Decl *Sema::ActOnStartCategoryImplementation(
     if (!CatIDecl) {
       // Category @implementation with no corresponding @interface.
       // Create and install one.
-      CatIDecl = ObjCCategoryDecl::Create(Context, CurContext, SourceLocation(),
-                                          SourceLocation(), SourceLocation(),
+      CatIDecl = ObjCCategoryDecl::Create(Context, CurContext, AtCatImplLoc,
+                                          ClassLoc, CatLoc,
                                           CatName, IDecl);
+      CatIDecl->setImplicit();
     }
   }