1 files changed, 1 insertions, 2 deletions
diff --git a/flake.nix b/flake.nix
index 66b9098a3..af531b50d 100644
--- a/flake.nix
+++ b/flake.nix
@@ -213,8 +213,7 @@
             name = "nix-tarball";
             version = builtins.readFile ./.version;
             versionSuffix = if officialRelease then "" else
-              "pre${builtins.substring 0 8 self.lastModified}" +
-              (if self ? shortRev then "_${self.shortRev}" else "");
+              "pre${builtins.substring 0 8 self.lastModified}_${self.shortRev or "dirty"}";
             src = self;
             inherit officialRelease;