diff --git a/tests/mktree.fedora b/tests/mktree.fedora
index 8d7ecff1fc..a289236e81 100755
--- a/tests/mktree.fedora
+++ b/tests/mktree.fedora
@@ -150,7 +150,7 @@ case $CMD in
         set -a
         mount_tree $SANDBOX_DIR
         function dnf() {
-            /usr/bin/dnf --installroot=$RPMTEST "$@"
+            $(which dnf) --installroot=$RPMTEST "$@"
         }
         echo "$ENV_MOTD"
         $SHELL