1 files changed, 1 insertions, 1 deletions
diff --git a/include/email.php b/include/email.php
index bd44cb763..b43ae0dc1 100755
--- a/include/email.php
+++ b/include/email.php
@@ -250,7 +250,7 @@ function email_header_encode($in_str, $charset) {
 
         // remove trailing spacer and
         // add start and end delimiters
-        $spacer = preg_quote($spacer);
+        $spacer = preg_quote($spacer,'/');
         $out_str = preg_replace("/" . $spacer . "$/", "", $out_str);
         $out_str = $start . $out_str . $end;
     }