diff --git a/tahoe-directory.cabal b/tahoe-directory.cabal
index 930caececb0da6ab11365b4a6038b40663b1263f..e867a288c4a43be2b2a1ccb67df7983b545dedf9 100644
--- a/tahoe-directory.cabal
+++ b/tahoe-directory.cabal
@@ -84,7 +84,7 @@ common language
 source-repository head
   type:     git
   location:
-    https://whetstone.private.storage/PrivateStorage/tahoe-directory
+    https://whetstone.private.storage/PrivateStorage/tahoe-directory.git
 
 library
   import:          warnings