diff --git a/check_zombies_php-cgi.sh b/check_zombies_php-cgi.sh
index 69b31a4..bf658aa 100755
--- a/check_zombies_php-cgi.sh
+++ b/check_zombies_php-cgi.sh
@@ -18,7 +18,6 @@ else
 fi
 
 
-php_cgi=$(realpath $(which php-cgi))
 KILL_SIGNAL=HUP
 
 
@@ -76,6 +75,16 @@ if [ -z "`which realpath`" ]; then
    fatal 'It seems "realpath" is not installed, but needed!'
 fi
 
+php_cgi=$(realpath $(which php-cgi))
+
+if [[ -z "$php_cgi" ]]; then
+   if [[ -x "/usr/local/php/bin/php-cgi" ]]; then
+      php_cgi="/usr/local/php/bin/php-cgi"
+   else
+      fatal "No 'php-cgi' binary found."
+   fi
+fi
+
 
 #---------------------------------------
 #-----------------------------