diff --git a/daemon/parted.c b/daemon/parted.c
index 2ada40f0a..e18d6faac 100644
--- a/daemon/parted.c
+++ b/daemon/parted.c
@@ -807,7 +807,7 @@ do_part_get_gpt_type(const char *device, int partnum)
     return NULL;
   }
 
-  char **lines = split_lines (err);
+  CLEANUP_FREE_STRING_LIST char **lines = split_lines (err);
   if (lines == NULL) {
     reply_with_error ("'%s %s -i %i' returned no output",
                       str_sgdisk, device, partnum);