diff --git a/ext/pcntl/pcntl.c b/ext/pcntl/pcntl.c
index 131ea8f5599..6649104fa58 100755
--- a/ext/pcntl/pcntl.c
+++ b/ext/pcntl/pcntl.c
@@ -368,7 +368,7 @@ PHP_FUNCTION(pcntl_wstopsig)
 }
 /* }}} */
 
-/* {{{ proto bool pcntl_exec(string path, [array args], [array envs])
+/* {{{ proto bool pcntl_exec(string path [, array args [, array envs]])
    Executes specified program in current process space as defined by exec(2) */
 PHP_FUNCTION(pcntl_exec)
 {