diff --git a/cocos2dx/proj.emscripten/cocos2dx.mk b/cocos2dx/proj.emscripten/cocos2dx.mk
index a11262596a..62297635ef 100644
--- a/cocos2dx/proj.emscripten/cocos2dx.mk
+++ b/cocos2dx/proj.emscripten/cocos2dx.mk
@@ -17,7 +17,7 @@ CC := EMSCRIPTEN=$(EMSCRIPTEN_ROOT) $(COCOS_ROOT)/external/emscripten/emcc
 CXX := EMSCRIPTEN=$(EMSCRIPTEN_ROOT) $(COCOS_ROOT)/external/emscripten/em++
 AR := EMSCRIPTEN=$(EMSCRIPTEN_ROOT) $(COCOS_ROOT)/external/emscripten/emar
 CCFLAGS += -MMD -Wall -fPIC -Qunused-arguments -Wno-overloaded-virtual -Qunused-variable -s TOTAL_MEMORY=268435456 -s VERBOSE=1 -U__native_client__
-CXXFLAGS += -MMD -Wall -fPIC -Qunused-arguments -Wno-overloaded-virtual -Qunused-variable -s TOTAL_MEMORY=268435456 -s VERBOSE=1 -U__native_client__
+CXXFLAGS += -MMD -Wall -fPIC -Qunused-arguments -Wno-overloaded-virtual -Qunused-variable -s TOTAL_MEMORY=268435456 -s VERBOSE=1 -U__native_client__ -std=c++11
 ARFLAGS = cr
 
 LIB_DIR = $(COCOS_SRC)/lib/emscripten