diff --git a/common/home-manager/default.nix b/common/home-manager/default.nix
index 5c2c81e..70afb52 100644
--- a/common/home-manager/default.nix
+++ b/common/home-manager/default.nix
@@ -19,6 +19,7 @@
       init.defaultBranch = "main";
 
       user.signingkey = "6CB106C25E86A9F7";
+      commit.gpgsign = true;
     };
   };
 }