diff --git a/extensions/adblock.c b/extensions/adblock.c
index ff08b672..00055b2c 100644
--- a/extensions/adblock.c
+++ b/extensions/adblock.c
@@ -654,16 +654,17 @@ adblock_is_matched_by_key (const gchar*  opts,
         {
             if (g_regex_match_full (regex, req_uri, -1, 0, 0, NULL, NULL))
             {
-                g_free (uri);
                 g_free (sig);
                 if (opts && adblock_check_filter_options (regex, opts, req_uri, page_uri))
                 {
+                    g_free (uri);
                     g_list_free (regex_bl);
                     return FALSE;
                 }
                 else
                 {
                     adblock_debug ("blocked by regexp=%s -- %s", g_regex_get_pattern (regex), uri);
+                    g_free (uri);
                     g_list_free (regex_bl);
                     return TRUE;
                 }