diff --git a/pkgs/development/tools/pax-rs/default.nix b/pkgs/development/tools/pax-rs/default.nix
index 248a137c49f6..1731dabf3704 100644
--- a/pkgs/development/tools/pax-rs/default.nix
+++ b/pkgs/development/tools/pax-rs/default.nix
@@ -14,6 +14,7 @@ buildRustPackage rec {
     license = licenses.mit;
     maintainers = [ maintainers.klntsky ];
     platforms = platforms.linux;
+    mainProgram = "px";
   };
 
   src =