diff --git a/testsuite/expect/test12.4 b/testsuite/expect/test12.4
index ff5983ef4d790fe4be860e993c5d5e485eda7667..76a76bb6a4a39bc0c574a4f38a1d8d98730ab23a 100755
--- a/testsuite/expect/test12.4
+++ b/testsuite/expect/test12.4
@@ -72,7 +72,7 @@ expect {
 	}
 }
 
-spawn $bin_id -u
+spawn $bin_id -g
 expect {
 	 -re "($alpha_numeric_under)" {
 		set user_gid $expect_out(1,string)