diff --git a/ngx_http_auth_ldap_module.c b/ngx_http_auth_ldap_module.c
index 18d359b..e7e606d 100644
--- a/ngx_http_auth_ldap_module.c
+++ b/ngx_http_auth_ldap_module.c
@@ -2200,6 +2200,7 @@ ngx_http_auth_ldap_check_group(ngx_http_request_t *r, ngx_http_auth_ldap_ctx_t *
     ngx_memcpy(gr, val.data, val.len);
     gr[val.len] = '\0';
     tail_gr = ngx_strchr(gr, ',');
+    
     if (tail_gr == NULL) {
         ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "http_auth_ldap: Incorrect group DN: \"%s\"", gr);
         ctx->outcome = OUTCOME_ERROR;
@@ -2235,6 +2236,8 @@ ngx_http_auth_ldap_check_group(ngx_http_request_t *r, ngx_http_auth_ldap_ctx_t *
             r->pool,
             for_filter);
         ngx_sprintf(filter, "(&(%s)(%s=%s))", cn_gr, ctx->server->group_attribute.data, user_val);
+        ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "http_auth_ldap: user \"%s\"", (const char *) user_val);
+        ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "http_auth_ldap: group \"%s\"", (const char *) cn_gr);
         ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "http_auth_ldap: Search group filter is \"%s\"", (const char *) filter);
         attrs[0] = LDAP_NO_ATTRS;
         attrs[1] = NULL;