diff --git a/cocos/renderer/CCGLProgramCache.cpp b/cocos/renderer/CCGLProgramCache.cpp
index b81f00975c..defb6080bb 100644
--- a/cocos/renderer/CCGLProgramCache.cpp
+++ b/cocos/renderer/CCGLProgramCache.cpp
@@ -432,9 +432,16 @@ GLProgram* GLProgramCache::getGLProgram(const std::string &key)
 
 void GLProgramCache::addGLProgram(GLProgram* program, const std::string &key)
 {
+    // release old one
+    auto prev = getProgram(key);
+    if( prev == program )
+        return;
+
+    _programs.erase(key);
+    CC_SAFE_RELEASE_NULL(prev);
+
     if (program)
-        program->retain();
-    
+        program->retain();    
     _programs[key] = program;
 }