diff --git a/include/clang/Driver/Options.td b/include/clang/Driver/Options.td
index 9fa0054a73563c2273d10f1a6e52c960b4997754..ebb54b7f714dba340d3148bfe04d6e51318cbe8d 100644
--- a/include/clang/Driver/Options.td
+++ b/include/clang/Driver/Options.td
@@ -1860,7 +1860,7 @@ def rdynamic : Flag<["-"], "rdynamic">;
 def resource_dir : Separate<["-"], "resource-dir">,
   Flags<[DriverOption, CC1Option, CoreOption, HelpHidden]>,
   HelpText<"The directory which holds the compiler resource files">;
-def resource_dir_EQ : Joined<["-"], "resource-dir=">, Flags<[DriverOption]>,
+def resource_dir_EQ : Joined<["-"], "resource-dir=">, Flags<[DriverOption, CoreOption]>,
   Alias<resource_dir>;
 def rpath : Separate<["-"], "rpath">, Flags<[LinkerInput]>;
 def rtlib_EQ : Joined<["-", "--"], "rtlib=">,
diff --git a/test/Driver/cl-options.c b/test/Driver/cl-options.c
index d4e9a5ef02ebaa9ea4006f6f19f66370cd1ee941..4e99ff8467c0ab039d67c56c6a84fa70b536483b 100644
--- a/test/Driver/cl-options.c
+++ b/test/Driver/cl-options.c
@@ -515,7 +515,8 @@
 // RUN:     -fms-extensions \
 // RUN:     -fno-ms-extensions \
 // RUN:     -mllvm -disable-llvm-optzns \
-// RUN:     -resource-dir \
+// RUN:     -resource-dir asdf \
+// RUN:     -resource-dir=asdf \
 // RUN:     -Wunused-variable \
 // RUN:     -fmacro-backtrace-limit=0 \
 // RUN:     -fstandalone-debug \