diff --git a/tests/modularity_enable_disable_module.pm b/tests/modularity_enable_disable_module.pm
index 77d7ffed..e9e66568 100644
--- a/tests/modularity_enable_disable_module.pm
+++ b/tests/modularity_enable_disable_module.pm
@@ -31,7 +31,7 @@ sub run {
     
     # Disable some other module.
     my $name_alt = "postgresql";
-    my $stream_alt = "13";
+    my $stream_alt = "12";
     assert_script_run("dnf module disable -y $name_alt:$stream_alt");
 
     # Check that it is listed in the disabled list.