diff --git a/lib/trivial.nix b/lib/trivial.nix
index a281cd70fb0e..b09b2f31bf93 100644
--- a/lib/trivial.nix
+++ b/lib/trivial.nix
@@ -178,7 +178,7 @@ rec {
     let suffixFile = ../.version-suffix;
     in if pathExists suffixFile
     then lib.strings.fileContents suffixFile
-    else "pre-git";
+    else "post-git";
 
   /* Attempts to return the the current revision of nixpkgs and
      returns the supplied default value otherwise.