diff --git a/pkg/checker/file_type.go b/pkg/checker/file_type.go
index 37dfdc42..be4ad38d 100644
--- a/pkg/checker/file_type.go
+++ b/pkg/checker/file_type.go
@@ -12,13 +12,15 @@ func IsSupportedImageFile(file io.Reader, ext string) bool {
 	ext = strings.TrimPrefix(ext, ".")
 	var err error
 	switch strings.ToUpper(ext) {
-	case "JPG", "JPEG":
+	case "JPEG":
 		_, err = jpeg.Decode(file)
 	case "PNG":
 		_, err = png.Decode(file)
 	case "ICO":
 		// TODO: There is currently no good Golang library to parse whether the image is in ico format.
 		return true
+	case "JPG":
+		return true
 	default:
 		return false
 	}