style fix
diff --git a/src/http/modules/ngx_http_empty_gif_module.c b/src/http/modules/ngx_http_empty_gif_module.c
index 69b6c89..050e759 100644
--- a/src/http/modules/ngx_http_empty_gif_module.c
+++ b/src/http/modules/ngx_http_empty_gif_module.c
@@ -158,7 +158,7 @@
         return rc;
     }
 
-    return ngx_http_output_filter(r, &out);;
+    return ngx_http_output_filter(r, &out);
 }