diff --git a/configure.in b/configure.in
index 61aaa97..4ac7377 100644
--- a/configure.in
+++ b/configure.in
@@ -1179,7 +1179,7 @@
  nice pathconf pause plock poll pthread_init \
  putenv readlink \
  select setegid seteuid setgid \
- setlocale setregid setreuid setsid setpgid setuid setvbuf \
+ setlocale setregid setreuid setsid setpgid setuid setvbuf snprintf \
  sigaction siginterrupt sigrelse strftime strptime symlink sysconf \
  tcgetpgrp tcsetpgrp tempnam timegm times tmpfile tmpnam tmpnam_r \
  truncate uname waitpid _getpty getpriority)