diff --git a/pkgs/shells/bash/5.1.nix b/pkgs/shells/bash/5.1.nix
index efa90b0499eb..3a11858747e6 100644
--- a/pkgs/shells/bash/5.1.nix
+++ b/pkgs/shells/bash/5.1.nix
@@ -124,6 +124,8 @@ stdenv.mkDerivation rec {
     platforms = platforms.all;
 
     maintainers = with maintainers; [ dtzWill ];
+
+    mainProgram = "bash";
   };
 
   passthru = {