diff --git a/clang/lib/Format/TokenAnnotator.cpp b/clang/lib/Format/TokenAnnotator.cpp
--- a/clang/lib/Format/TokenAnnotator.cpp
+++ b/clang/lib/Format/TokenAnnotator.cpp
@@ -2482,7 +2482,8 @@
   //     return i + 1;
   //   }
   if (Next->Next && Next->Next->is(tok::identifier) &&
-      !(Next->MatchingParen->Next && Next->MatchingParen->Next->is(tok::semi)))
+      (!Next->MatchingParen->Next ||
+       Next->MatchingParen->Next->is(tok::l_brace)))
     return true;
   for (const FormatToken *Tok = Next->Next; Tok && Tok != Next->MatchingParen;
        Tok = Tok->Next) {
diff --git a/clang/unittests/Format/FormatTest.cpp b/clang/unittests/Format/FormatTest.cpp
--- a/clang/unittests/Format/FormatTest.cpp
+++ b/clang/unittests/Format/FormatTest.cpp
@@ -8235,6 +8235,11 @@
                "  return a + b < c;\n"
                "}",
                Style);
+  // The return breaking style doesn't affect object definitions with
+  // attribute-like macros.
+  verifyFormat("Tttttttttttttttttttttttt ppppppppppppppp\n"
+               "    ABSL_GUARDED_BY(mutex) = {};",
+               getGoogleStyleWithColumns(40));
 
   Style = getGNUStyle();