diff --git a/configure b/configure
index d6694c717a6198ab93dd1de238ef2a2554d58149..0f5a6abd0eb3a13b4f16d194f8ef5668271fb99a 100755
--- a/configure
+++ b/configure
@@ -1794,7 +1794,7 @@ HOSTEXESUF=$(exesuf $host_os)
 : ${TMPDIR:=$TMP}
 : ${TMPDIR:=/tmp}
 
-if ! check_cmd mktemp -u; then
+if ! check_cmd mktemp -u XXXXXX; then
     # simple replacement for missing mktemp
     # NOT SAFE FOR GENERAL USE
     mktemp(){