diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index 4c1cd39..e5be1e0 100644
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -1279,6 +1279,8 @@
 
   // Select the appropriate action.
   bool IsRewriter = false;
+  bool IsModernRewriter = false;
+  
   if (isa<AnalyzeJobAction>(JA)) {
     assert(JA.getType() == types::TY_Plist && "Invalid output type.");
     CmdArgs.push_back("-analyze");
@@ -1349,6 +1351,7 @@
       CmdArgs.push_back("-emit-pch");
     } else if (JA.getType() == types::TY_RewrittenObjC) {
       CmdArgs.push_back("-rewrite-objc");
+      IsModernRewriter = true;
     } else if (JA.getType() == types::TY_RewrittenLegacyObjC) {
       CmdArgs.push_back("-rewrite-objc");
       IsRewriter = true;
@@ -2226,7 +2229,8 @@
   ObjCRuntime objCRuntime;
   unsigned objcABIVersion = 0;
   bool NeXTRuntimeIsDefault
-    = (IsRewriter || getToolChain().getTriple().isOSDarwin());
+    = (IsRewriter || IsModernRewriter ||
+       getToolChain().getTriple().isOSDarwin());
   if (Args.hasFlag(options::OPT_fnext_runtime, options::OPT_fgnu_runtime,
                    NeXTRuntimeIsDefault)) {
     objCRuntime.setKind(ObjCRuntime::NeXT);
@@ -2260,8 +2264,9 @@
       D.Diag(diag::err_drv_clang_unsupported) << A->getAsString(Args);
   } else {
     // Otherwise, determine if we are using the non-fragile ABI.
-    bool NonFragileABIIsDefault
-      = (!IsRewriter && getToolChain().IsObjCNonFragileABIDefault());
+    bool NonFragileABIIsDefault = 
+      (IsModernRewriter || 
+       (!IsRewriter && getToolChain().IsObjCNonFragileABIDefault()));
     if (Args.hasFlag(options::OPT_fobjc_nonfragile_abi,
                      options::OPT_fno_objc_nonfragile_abi,
                      NonFragileABIIsDefault)) {
@@ -2341,7 +2346,7 @@
 
   // -fobjc-infer-related-result-type is the default, except in the Objective-C
   // rewriter.
-  if (IsRewriter)
+  if (IsRewriter || IsModernRewriter)
     CmdArgs.push_back("-fno-objc-infer-related-result-type");
 
   // Handle -fobjc-gc and -fobjc-gc-only. They are exclusive, and -fobjc-gc-only
diff --git a/test/Driver/rewrite-objc.m b/test/Driver/rewrite-objc.m
index c571260..7b080fc 100644
--- a/test/Driver/rewrite-objc.m
+++ b/test/Driver/rewrite-objc.m
@@ -3,7 +3,7 @@
 // TEST0: clang{{.*}}" "-cc1"
 // TEST0: "-rewrite-objc"
 // FIXME: CHECK-NOT is broken somehow, it doesn't work here. Check adjacency instead.
-// TEST0: "-fmessage-length" "0" "-stack-protector" "1" "-mstackrealign" "-fblocks" "-fobjc-runtime-has-arc" "-fobjc-runtime-has-weak" "-fobjc-dispatch-method=mixed" "-fobjc-default-synthesize-properties" "-fobjc-exceptions" "-fexceptions" "-fdiagnostics-show-option"
+// TEST0: "-fmessage-length" "0" "-stack-protector" "1" "-mstackrealign" "-fblocks" "-fobjc-runtime-has-arc" "-fobjc-runtime-has-weak" "-fobjc-dispatch-method=mixed" "-fobjc-default-synthesize-properties" "-fno-objc-infer-related-result-type" "-fobjc-exceptions" "-fexceptions" "-fdiagnostics-show-option"
 // TEST0: rewrite-objc.m"
 
 // RUN: not %clang -ccc-no-clang -target unknown -rewrite-objc %s -o - -### 2>&1 | \