diff --git a/clang/lib/Parse/ParseObjc.cpp b/clang/lib/Parse/ParseObjc.cpp
index f7410b8..01b1bf4 100644
--- a/clang/lib/Parse/ParseObjc.cpp
+++ b/clang/lib/Parse/ParseObjc.cpp
@@ -1007,6 +1007,10 @@
   switch (Tok.getKind()) {
   default:
     return nullptr;
+  case tok::colon:
+    // Empty selector piece uses the location of the ':'.
+    SelectorLoc = Tok.getLocation();
+    return nullptr;
   case tok::ampamp:
   case tok::ampequal:
   case tok::amp: