diff --git a/apache/files/www-webalizer.sh b/apache/files/www-webalizer.sh
index e1da12e..7727800 100755
--- a/apache/files/www-webalizer.sh
+++ b/apache/files/www-webalizer.sh
@@ -1,5 +1,10 @@
 #!/bin/sh
 
+if [ `whoami` != webalizer ]; then
+    echo "ERR: Script needs to be run as webalizer user" 1>&2
+    exit 1
+fi
+
 umask 022
 
 for cfg in /etc/webalizer/http/*.conf /etc/webalizer/https/*.conf; do