diff --git a/modules/home/delta/default.nix b/modules/home/delta/default.nix
index b301d2b6..eddc72e6 100644
--- a/modules/home/delta/default.nix
+++ b/modules/home/delta/default.nix
@@ -86,8 +86,10 @@ in
         };
 
         ui = {
-          # Delta expects a `git diff` input
-          diff-formatter = ":git";
+          diff = {
+            # Delta expects a `git diff` input
+            format = "git";
+          };
 
           pager = "${lib.getExe cfg.package}";
         };