diff --git a/config.json b/config.json
index 35fc329..ec223ba 100644
--- a/config.json
+++ b/config.json
@@ -4,5 +4,10 @@
   "QUALITY": "80",
   "IMG_PATH": "/path/to/pics",
   "EXHAUST_PATH": "",
-  "ALLOWED_TYPES": ["jpg","png","jpeg","bmp","gif"]
+  "ALLOWED_TYPES": [
+    "jpg",
+    "png",
+    "jpeg",
+    "bmp"
+  ]
 }
diff --git a/router.go b/router.go
index dbfe06b..c851d2e 100644
--- a/router.go
+++ b/router.go
@@ -42,10 +42,8 @@ func Convert(ImgPath string, ExhaustPath string, AllowedTypes []string, QUALITY
 			}
 		}
 		if !allowed {
-			msg := "File extension not allowed!"
-			log.Warnf("%s %s", msg, ImgFilename)
-			c.Send(msg)
-			c.SendStatus(403)
+			log.Warnf("File extension not allowed! %s", ImgFilename)
+			c.SendFile(RawImageAbs)
 			return
 		}