diff --git a/system/default.nix b/system/default.nix
index 269b554..ce7c693 100644
--- a/system/default.nix
+++ b/system/default.nix
@@ -9,5 +9,6 @@
     ./security.nix
     ./services.nix
     ./users.nix
+    ./label.nix
   ];
 }
diff --git a/system/label.nix b/system/label.nix
new file mode 100644
index 0000000..36e5cd6
--- /dev/null
+++ b/system/label.nix
@@ -0,0 +1,19 @@
+{
+  self,
+  ...
+}:
+let
+  flakeRev = if (self ? shortRev) then self.shortRev else "dirty";
+  flakeMod = if (self ? lastModifiedDate) then self.lastModifiedDate else "";
+  flakeRevCount = if (self ? revCount) then builtins.toString self.revCount else "";
+  tagGit = "rev:" + flakeRev + ":" + flakeRevCount;
+  tagMod = "mod:" + flakeMod;
+  label = tagGit + "_" + tagMod;
+in
+{
+  system.nixos.tags = [
+    tagGit
+    tagMod
+  ];
+  system.nixos.label = label;
+}