diff --git a/src/mime/type.go b/src/mime/type.go
index a7292387c091d..bf10de8d69e7f 100644
--- a/src/mime/type.go
+++ b/src/mime/type.go
@@ -61,15 +61,15 @@ var builtinTypesLower = map[string]string{
 	".gif":  "image/gif",
 	".htm":  "text/html; charset=utf-8",
 	".html": "text/html; charset=utf-8",
-	".jpg":  "image/jpeg",
 	".jpeg": "image/jpeg",
+	".jpg":  "image/jpeg",
 	".js":   "application/javascript",
-	".wasm": "application/wasm",
+	".mjs":  "application/javascript",
 	".pdf":  "application/pdf",
 	".png":  "image/png",
 	".svg":  "image/svg+xml",
+	".wasm": "application/wasm",
 	".xml":  "text/xml; charset=utf-8",
-	".mjs":  "text/javascript",
 }
 
 var once sync.Once // guards initMime