diff --git a/GKNavigationBar/NavigationBar/UIViewController+GKNavigationBar.h b/GKNavigationBar/NavigationBar/UIViewController+GKNavigationBar.h
index 6fedecd..1cc33ae 100644
--- a/GKNavigationBar/NavigationBar/UIViewController+GKNavigationBar.h
+++ b/GKNavigationBar/NavigationBar/UIViewController+GKNavigationBar.h
@@ -28,7 +28,7 @@ NS_ASSUME_NONNULL_BEGIN
 
 /// 是否创建了gk_navigationBar
 /// 返回YES表明当前控制器使用了自定义的gk_navigationBar，默认为NO
-@property (nonatomic, assign, readonly) BOOL                  gk_NavBarInit;
+@property (nonatomic, assign, readonly) BOOL        gk_NavBarInit;
 
 /// 设置状态栏是否隐藏，默认NO：不隐藏
 @property (nonatomic, assign) BOOL                  gk_statusBarHidden;
diff --git a/GKNavigationBar/NavigationBar/UIViewController+GKNavigationBar.m b/GKNavigationBar/NavigationBar/UIViewController+GKNavigationBar.m
index 92ef5d6..f549b1b 100644
--- a/GKNavigationBar/NavigationBar/UIViewController+GKNavigationBar.m
+++ b/GKNavigationBar/NavigationBar/UIViewController+GKNavigationBar.m
@@ -628,6 +628,10 @@ - (void)setBackItemImage:(UIImage *)image {
         if (self.gk_backStyle != GKNavigationBarBackStyleNone) {
             image = (self.gk_backStyle == GKNavigationBarBackStyleBlack) ? self.gk_blackBackImage : self.gk_whiteBackImage;
         }
+    }else {
+        if (self.gk_backStyle == GKNavigationBarBackStyleNone) {
+            image = nil;
+        }
     }
     
     // 没有image