diff --git a/tools/simulator/frameworks/runtime-src/proj.ios_mac/mac/SimulatorApp.mm b/tools/simulator/frameworks/runtime-src/proj.ios_mac/mac/SimulatorApp.mm
index 0a04d97885..c692779e80 100755
--- a/tools/simulator/frameworks/runtime-src/proj.ios_mac/mac/SimulatorApp.mm
+++ b/tools/simulator/frameworks/runtime-src/proj.ios_mac/mac/SimulatorApp.mm
@@ -452,6 +452,7 @@ static void glfwDropFunc(GLFWwindow *window, int count, const char **files)
     
     RuntimeEngine::getInstance()->setProjectConfig(_project);
     Application::getInstance()->run();
+    CC_SAFE_DELETE(_app);
     // After run, application needs to be terminated immediately.
     [NSApp terminate: self];
 }
@@ -705,6 +706,7 @@ static void glfwDropFunc(GLFWwindow *window, int count, const char **files)
 
 -(IBAction)onFileClose:(id)sender
 {
+    CC_SAFE_DELETE(_app);
     [[NSApplication sharedApplication] terminate:self];
 }