diff --git a/clang/lib/Format/FormatToken.h b/clang/lib/Format/FormatToken.h
--- a/clang/lib/Format/FormatToken.h
+++ b/clang/lib/Format/FormatToken.h
@@ -102,6 +102,7 @@
   TYPE(TrailingReturnArrow)                                                    \
   TYPE(TrailingUnaryOperator)                                                  \
   TYPE(TypenameMacro)                                                          \
+  TYPE(TypenameMacroParen)                                                     \
   TYPE(UnaryOperator)                                                          \
   TYPE(UntouchableMacroFunc)                                                   \
   TYPE(CSharpStringLiteral)                                                    \
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
@@ -244,6 +244,8 @@
       Contexts.back().IsExpression = false;
     } else if (Left->Previous && Left->Previous->is(tok::kw___attribute)) {
       Left->setType(TT_AttributeParen);
+    } else if (Left->Previous && Left->Previous->is(TT_TypenameMacro)) {
+      Left->setType(TT_TypenameMacroParen);
     } else if (Left->Previous && Left->Previous->is(TT_ForEachMacro)) {
       // The first argument to a foreach macro is a declaration.
       Contexts.back().IsForEachMacro = true;
@@ -335,6 +337,8 @@
 
         if (Left->is(TT_AttributeParen))
           CurrentToken->setType(TT_AttributeParen);
+        if (Left->is(TT_TypenameMacroParen))
+          CurrentToken->setType(TT_TypenameMacroParen);
         if (Left->Previous && Left->Previous->is(TT_JavaAnnotation))
           CurrentToken->setType(TT_JavaAnnotation);
         if (Left->Previous && Left->Previous->is(TT_LeadingJavaAnnotation))
@@ -1855,9 +1859,11 @@
       }
       return T && T->is(TT_PointerOrReference);
     };
-    bool ParensAreType = !Tok.Previous || Tok.Previous->is(TT_TemplateCloser) ||
-                         Tok.Previous->isSimpleTypeSpecifier() ||
-                         IsQualifiedPointerOrReference(Tok.Previous);
+    bool ParensAreType =
+        !Tok.Previous ||
+        Tok.Previous->isOneOf(TT_TemplateCloser, TT_TypenameMacroParen) ||
+        Tok.Previous->isSimpleTypeSpecifier() ||
+        IsQualifiedPointerOrReference(Tok.Previous);
     bool ParensCouldEndDecl =
         Tok.Next->isOneOf(tok::equal, tok::semi, tok::l_brace, tok::greater);
     if (ParensAreType && !ParensCouldEndDecl)
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
@@ -16550,6 +16550,8 @@
   Macros.PointerAlignment = FormatStyle::PAS_Left;
   verifyFormat("STACK_OF(int)* a;", Macros);
   verifyFormat("STACK_OF(int*)* a;", Macros);
+  verifyFormat("x = (STACK_OF(uint64_t))*a;", Macros);
+  verifyFormat("x = (STACK_OF(uint64_t))&a;", Macros);
 }
 
 TEST_F(FormatTest, AmbersandInLamda) {