diff --git a/CHANGELOG b/CHANGELOG
index d218710b3..0e72c41e8 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,6 +1,7 @@
 CHANGELOG Roundcube Webmail
 ===========================
 
+- Fix handling of curly brackets in URLs (#1488168)
 - Fix handling of dates (birthday/anniversary) in contact data (#1488147)
 - Fix error on opening searched LDAP contact (#1488144)
 - Fix redundant line break in flowed format (#1488146)
diff --git a/program/include/rcube_string_replacer.php b/program/include/rcube_string_replacer.php
index 5d743bfff..8997ca342 100644
--- a/program/include/rcube_string_replacer.php
+++ b/program/include/rcube_string_replacer.php
@@ -39,7 +39,7 @@ class rcube_string_replacer
     // Support unicode/punycode in top-level domain part
     $utf_domain = '[^?&@"\'\\/()\s\r\t\n]+\\.([^\\x00-\\x2f\\x3b-\\x40\\x5b-\\x60\\x7b-\\x7f]{2,}|xn--[a-z0-9]{2,})';
     $url1 = '.:;,';
-    $url2 = 'a-z0-9%=#@+?&\\/_~\\[\\]-';
+    $url2 = 'a-z0-9%=#@+?&\\/_~\\[\\]{}-';
 
     $this->link_pattern = "/([\w]+:\/\/|\Wwww\.)($utf_domain([$url1]?[$url2]+)*)/i";
     $this->mailto_pattern = "/("