diff --git a/pkgs/development/compilers/swift/swift-format/default.nix b/pkgs/development/compilers/swift/swift-format/default.nix
index 188208ebf492..d68801aac6e2 100644
--- a/pkgs/development/compilers/swift/swift-format/default.nix
+++ b/pkgs/development/compilers/swift/swift-format/default.nix
@@ -36,5 +36,6 @@ stdenv.mkDerivation {
     platforms = with lib.platforms; linux ++ darwin;
     license = lib.licenses.asl20;
     maintainers = with lib.maintainers; [ dtzWill trepetti dduan trundle stephank ];
+    mainProgram = "swift-format";
   };
 }