diff --git a/wa-system/design/actions/waDesign.actions.php b/wa-system/design/actions/waDesign.actions.php
index 21116ca7e..d39c08b11 100644
--- a/wa-system/design/actions/waDesign.actions.php
+++ b/wa-system/design/actions/waDesign.actions.php
@@ -1051,7 +1051,7 @@ protected function isImageValid(waRequestFile $f, &$error = '')
     {
         // If you add svg here, then on sites with cdn such pictures will not be loaded.
         // Design themes must use the $wa_real_theme_url variable for settings with the image type.
-        $allowed = array('jpg', 'jpeg', 'png', 'gif');
+        $allowed = array('jpg', 'jpeg', 'png', 'gif', 'svg');
         if (!in_array(strtolower($f->extension), $allowed)) {
             $error = sprintf(_ws("Files with extensions %s are allowed only."), '*.'.implode(', *.', $allowed));
             return false;