diff --git a/configure b/configure
index 0f1c62d683..76ea08d806 100755
--- a/configure
+++ b/configure
@@ -1793,7 +1793,7 @@ 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(){