diff --git a/home/deepak/home.nix b/home/deepak/home.nix
index 44cf608..2c72af5 100644
--- a/home/deepak/home.nix
+++ b/home/deepak/home.nix
@@ -21,6 +21,10 @@
     enable = true;
     userName  = "Deepak Mallubhotla";
     userEmail = "dmallubhotla+github@gmail.com";
+    signing = {
+      key = "976F3357369149AB";
+      signByDefault = true;
+    };
     extraConfig = {
       core = {
         fileMode = false;