diff --git a/nixos/tests/kerberos/mit.nix b/nixos/tests/kerberos/mit.nix
index df13992a8360..6da3a384aa99 100644
--- a/nixos/tests/kerberos/mit.nix
+++ b/nixos/tests/kerberos/mit.nix
@@ -21,7 +21,6 @@ import ../make-test.nix ({pkgs, ...}: {
       };
     };
     users.extraUsers.alice = { isNormalUser = true; };
-    environment.systemPackages = [ pkgs.krb5Full.dev ];
   };
 
   testScript = ''
diff --git a/pkgs/development/libraries/kerberos/krb5.nix b/pkgs/development/libraries/kerberos/krb5.nix
index 165f9139ff1f..50a669b053f9 100644
--- a/pkgs/development/libraries/kerberos/krb5.nix
+++ b/pkgs/development/libraries/kerberos/krb5.nix
@@ -65,7 +65,7 @@ stdenv.mkDerivation rec {
 
   # not via outputBin, due to reference from libkrb5.so
   postInstall = ''
-    moveToOutput bin "$dev"
+    moveToOutput bin/krb5-config "$dev"
   '';
 
   enableParallelBuilding = true;