diff --git a/cocos/base/CCRef.cpp b/cocos/base/CCRef.cpp
index 91e30935e9..696584dac2 100644
--- a/cocos/base/CCRef.cpp
+++ b/cocos/base/CCRef.cpp
@@ -81,13 +81,13 @@ Ref::~Ref()
 
 void Ref::retain()
 {
-    CCASSERT(_referenceCount > 0, "reference count should greater than 0");
+    CCASSERT(_referenceCount > 0, "reference count should be greater than 0");
     ++_referenceCount;
 }
 
 void Ref::release()
 {
-    CCASSERT(_referenceCount > 0, "reference count should greater than 0");
+    CCASSERT(_referenceCount > 0, "reference count should be greater than 0");
     --_referenceCount;
 
     if (_referenceCount == 0)