diff --git a/garden-cli/src/config/common.ts b/garden-cli/src/config/common.ts
index bb6e25ab20..30126cb01c 100644
--- a/garden-cli/src/config/common.ts
+++ b/garden-cli/src/config/common.ts
@@ -82,6 +82,7 @@ export const joiRepositoryUrl = () => Joi
       "git",
       /git\+https?/,
       "https",
+      "file",
     ],
   })
   .description(