diff --git a/modules/git.nix b/modules/git.nix
index 0fb0ee9..43cc790 100644
--- a/modules/git.nix
+++ b/modules/git.nix
@@ -12,6 +12,10 @@
         pl = "pull";
         s = "status";
       };
+      signing = {
+        key = "97BE CCA7 92F4 B2BD F149 F524 DFD0 FD20 5943 C14A";
+        signByDefault = true;
+      };
     };
     programs.gitui = {
       enable = true;