diff --git a/flake.nix b/flake.nix
index 1e831af..f6234d9 100644
--- a/flake.nix
+++ b/flake.nix
@@ -60,12 +60,12 @@
         apps = {
           default = {
             type = "app";
-            program = "${sim-wrapper}/bin/sim_wrapper"; # Note: hyphens become underscores in binary names
+            program = "${sim-wrapper}/bin/sim-wrapper";
             meta = sim-wrapper.meta;
           };
           sim-wrapper = {
             type = "app";
-            program = "${sim-wrapper}/bin/sim_wrapper";
+            program = "${sim-wrapper}/bin/sim-wrapper";
             meta = sim-wrapper.meta;
           };
         };