Fix syntax error

1 files changed, 1 insertions, 1 deletions

diff --git a/program/include/rcube_output_html.php b/program/include/rcube_output_html.php
index a37226475..b0fc81764 100644
--- a/program/include/rcube_output_html.php
+++ b/program/include/rcube_output_html.php
@@ -1389,7 +1389,7 @@ class rcube_output_html extends rcube_output
         $attrib['src'] = $attrib['src'] ? $this->abs_url($attrib['src'], true) : 'program/resources/blank.gif';
 
         // register as 'contentframe' object
-        if ($is_contentframe)
+        if ($is_contentframe) {
             $this->set_env('contentframe', $attrib['name']);
             $this->set_env('blankpage', $attrib['src']);
         }