@@ -1,14 +1,14 @@
 { pkgs, self }:
 let
   version = self.shortRev or self.dirtyShortRev or "unstable-${self.lastModified}";
-  dockerTag = self.rev or self.dirtyRev or "unstable-${self.lastModified}";
+  fullSHA = self.rev or self.dirtyRev;
   mkDocker = type: { server, website }:
     let
       PORT = 80;
     in
     pkgs.dockerTools.${type} {
       name = "registry.fly.io/alanpearce-eu";
-      tag = dockerTag;
+      tag = fullSHA;
       contents = [
         (pkgs.writeTextDir "config.toml" (builtins.readFile ./../config.toml))
         website
@@ -74,7 +74,7 @@ ./../internal
       ];
     };
     modules = ./gomod2nix.toml;
-    ldflags = [ "-s" "-w" "-X" "main.Commit=${version}" ];
+    ldflags = [ "-s" "-w" "-X" "main.Commit=${fullSHA}" ];
   };
   docker-stream = mkDockerStream { inherit server website; };
   docker-stream-aarch64-linux = mkDockerStream {