MODAPP-407

diff --git a/src/mod/applications/mod_db/mod_db.c b/src/mod/applications/mod_db/mod_db.c
index c5dfc11fb4e4028c7a531d364e84b33c728da06c..59d711f91357590db7c5c949a7ddb7abc9a4d842 100644 (file)
--- a/src/mod/applications/mod_db/mod_db.c
+++ b/src/mod/applications/mod_db/mod_db.c
@@ -539,7 +539,10 @@ SWITCH_STANDARD_API(group_api_function)
                limit_execute_sql_callback(sql, group_callback, &cbt);
                switch_safe_free(sql);
 
-               *(buf + (strlen(buf) - 1)) = '\0';
+               if (!zstr(buf)) {
+       *(buf + (strlen(buf) - 1)) = '\0';
+    }
+
                stream->write_function(stream, "%s", buf);
 
                goto done;