diff --git a/common.gypi b/common.gypi
index a9e700c7b..8cf3887fa 100644
--- a/common.gypi
+++ b/common.gypi
@@ -6,7 +6,7 @@
       'CLANG_CXX_LANGUAGE_STANDARD':'c++11',
       'GCC_VERSION': 'com.apple.compilers.llvm.clang.1_0',
     },
-    'cflags':['-std=c++11'],
+    'cppflags':['-std=c++11'],
     'configurations': {
       'Debug': {
         'cflags': [ '-g', '-O0', '-I<(boost_root)/include' ],