diff --git a/src/portable/portable.c b/src/portable/portable.c
index 3dc6d9e422..c7c11a48f2 100644
--- a/src/portable/portable.c
+++ b/src/portable/portable.c
@@ -877,7 +877,7 @@ static int attach_unit_file(
                 _cleanup_(unlink_and_freep) char *tmp = NULL;
                 _cleanup_close_ int fd = -1;
 
-                fd = open_tmpfile_linkable(where, O_WRONLY|O_CLOEXEC, &tmp);
+                fd = open_tmpfile_linkable(path, O_WRONLY|O_CLOEXEC, &tmp);
                 if (fd < 0)
                         return log_debug_errno(fd, "Failed to create unit file '%s': %m", path);