diff --git a/lib/Format/Format.cpp b/lib/Format/Format.cpp
index 64a6224..727e85f 100644
--- a/lib/Format/Format.cpp
+++ b/lib/Format/Format.cpp
@@ -1149,6 +1149,8 @@
         (Tok.is(tok::equal) || Tok.Parent->is(tok::equal)))
       return false;
 
+    if (Tok.Parent->is(tok::comma))
+      return true;
     if (Tok.Type == TT_IncludePath)
       return Tok.is(tok::less) || Tok.is(tok::string_literal);
     if (Tok.Type == TT_CtorInitializerColon || Tok.Type == TT_ObjCBlockLParen)
diff --git a/unittests/Format/FormatTest.cpp b/unittests/Format/FormatTest.cpp
index 9847325..a46c9b6 100644
--- a/unittests/Format/FormatTest.cpp
+++ b/unittests/Format/FormatTest.cpp
@@ -121,6 +121,7 @@
 TEST_F(FormatTest, FormatsNestedCall) {
   verifyFormat("Method(f1, f2(f3));");
   verifyFormat("Method(f1(f2, f3()));");
+  verifyFormat("Method(f1(f2, (f3())));");
 }
 
 //===----------------------------------------------------------------------===//