diff --git a/src/mux_h2.c b/src/mux_h2.c
index 4120e0040..63b9a805c 100644
--- a/src/mux_h2.c
+++ b/src/mux_h2.c
@@ -4940,7 +4940,7 @@ next_frame:
 
 	if (outlen < 0 || htx_free_space(htx) < global.tune.maxrewrite) {
 		/* too large headers? this is a stream error only */
-		TRACE_STATE("message headers too large", H2_EV_RX_FRAME|H2_EV_RX_HDR|H2_EV_H2S_ERR|H2_EV_PROTO_ERR, h2c->conn);
+		TRACE_STATE("message headers too large or invalid", H2_EV_RX_FRAME|H2_EV_RX_HDR|H2_EV_H2S_ERR|H2_EV_PROTO_ERR, h2c->conn);
 		htx->flags |= HTX_FL_PARSING_ERROR;
 		goto fail;
 	}