diff --git a/install/install_db.php b/install/install_db.php
index 969703d70..c6077953a 100644
--- a/install/install_db.php
+++ b/install/install_db.php
@@ -197,7 +197,7 @@ if($g5_install || !$result) {
                     cf_member_img_width = '60',
                     cf_member_img_height = '60',
                     cf_login_minutes = '10',
-                    cf_image_extension = 'gif|jpg|jpeg|png',
+                    cf_image_extension = 'gif|jpg|jpeg|png|webp',
                     cf_flash_extension = 'swf',
                     cf_movie_extension = 'asx|asf|wmv|wma|mpg|mpeg|mov|avi|mp3',
                     cf_formmail_is_member = '1',