diff --git a/ext/pcntl/config.m4 b/ext/pcntl/config.m4
index 636f50cc4e5..2ef07f140c0 100644
--- a/ext/pcntl/config.m4
+++ b/ext/pcntl/config.m4
@@ -7,7 +7,7 @@ PHP_ARG_ENABLE(pcntl, whether to enable pcntl support,
 
 if test "$PHP_PCNTL" != "no"; then
   AC_CHECK_FUNCS(fork, [ AC_DEFINE(HAVE_FORK,1,[ ]) ], [ AC_MSG_ERROR(pcntl: fork() not supported by this platform) ])
-  AC_CHECK_FUNCS(waitpid, [ AC_DEFINE(HAVE_WAITPID,1,[ ]) ], [ AC_MSG_ERROR(pcntl: fork() not supported by this platform) ])
+  AC_CHECK_FUNCS(waitpid, [ AC_DEFINE(HAVE_WAITPID,1,[ ]) ], [ AC_MSG_ERROR(pcntl: waitpid() not supported by this platform) ])
   AC_CHECK_FUNCS(sigaction, [ AC_DEFINE(HAVE_SIGACTION,1,[ ]) ], [ AC_MSG_ERROR(pcntl: sigaction() not supported by this platform) ])
   AC_CHECK_FUNCS([getpriority setpriority wait3 sigprocmask sigwaitinfo sigtimedwait])
   PHP_NEW_EXTENSION(pcntl, pcntl.c php_signal.c, $ext_shared, cli)