From bb39f2bb8a835696986ac01416a73fe11cb0b0ba Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <edolstra@gmail.com>
Date: Thu, 2 Apr 2020 19:12:14 +0200
Subject: [PATCH] Temporary backward compatibility hack

---
 flake.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/flake.nix b/flake.nix
index d954bd29d..be966f498 100644
--- a/flake.nix
+++ b/flake.nix
@@ -13,7 +13,7 @@
       versionSuffix =
         if officialRelease
         then ""
-        else "pre${builtins.substring 0 8 self.lastModifiedDate}_${self.shortRev or "dirty"}";
+        else "pre${builtins.substring 0 8 (self.lastModifiedDate or self.lastModified)}_${self.shortRev or "dirty"}";
 
       officialRelease = false;