diff --git a/src/h2.c b/src/h2.c
index 3ff4b4d..a4279d3 100644
--- a/src/h2.c
+++ b/src/h2.c
@@ -294,6 +294,8 @@
 		goto fail;
 
 	sl->info.req.meth = find_http_meth(phdr[H2_PHDR_IDX_METH].ptr, phdr[H2_PHDR_IDX_METH].len);
+	if (sl->info.req.meth == HTTP_METH_HEAD)
+		*msgf |= H2_MSGF_BODYLESS_RSP;
 	return sl;
  fail:
 	return NULL;
@@ -547,6 +549,8 @@
 	 * On 1xx responses there is no ES on the HEADERS frame but there is no
 	 * body. So remove the flag H2_MSGF_BODY and add H2_MSGF_RSP_1XX to
 	 * notify the decoder another HEADERS frame is expected.
+	 * 204/304 resposne have no body by definition. So remove the flag
+	 * H2_MSGF_BODY and set H2_MSGF_BODYLESS_RSP.
 	 */
 	if (status == 101)
 		goto fail;
@@ -554,6 +558,10 @@
 		*msgf |= H2_MSGF_RSP_1XX;
 		*msgf &= ~H2_MSGF_BODY;
 	}
+	else if (sl->info.res.status == 204 || sl->info.res.status == 304) {
+		*msgf &= ~H2_MSGF_BODY;
+		*msgf |= H2_MSGF_BODYLESS_RSP;
+	}
 
 	/* Set HTX start-line flags */
 	flags |= HTX_SL_F_VER_11;    // V2 in fact
diff --git a/src/mux_h2.c b/src/mux_h2.c
index 31760c9..93fb99c 100644
--- a/src/mux_h2.c
+++ b/src/mux_h2.c
@@ -179,7 +179,7 @@
 
 /* stream flags indicating how data is supposed to be sent */
 #define H2_SF_DATA_CLEN         0x00000100 // data sent using content-length
-/* unused flags: 0x00000200 */
+#define H2_SF_BODYLESS_RESP     0x00000200 /* Bodyless response message */
 #define H2_SF_BODY_TUNNEL       0x00000400 // Attempt to establish a Tunnelled stream (the result depends on the status code)
 
 
@@ -4701,6 +4701,8 @@
 			htx->extra = *body_len;
 		}
 	}
+	if (msgf & H2_MSGF_BODYLESS_RSP)
+		*flags |= H2_SF_BODYLESS_RESP;
 
 	if (msgf & H2_MSGF_BODY_TUNNEL)
 		*flags |= H2_SF_BODY_TUNNEL;
@@ -4942,6 +4944,8 @@
 			}
 			sl = htx_get_blk_ptr(htx, blk);
 			h2s->status = sl->info.res.status;
+			if (h2s->status == 204 || h2s->status == 304)
+				h2s->flags |= H2_SF_BODYLESS_RESP;
 			if (h2s->status < 100 || h2s->status > 999) {
 				TRACE_ERROR("will not encode an invalid status code", H2_EV_TX_FRAME|H2_EV_TX_HDR|H2_EV_H2S_ERR, h2c->conn, h2s);
 				goto fail;
@@ -5165,6 +5169,8 @@
 			sl = htx_get_blk_ptr(htx, blk);
 			meth = htx_sl_req_meth(sl);
 			uri  = htx_sl_req_uri(sl);
+			if (sl->info.req.meth == HTTP_METH_HEAD)
+				h2s->flags |= H2_SF_BODYLESS_RESP;
 			if (unlikely(uri.len == 0)) {
 				TRACE_ERROR("no URI in HTX request", H2_EV_TX_FRAME|H2_EV_TX_HDR|H2_EV_H2S_ERR, h2c->conn, h2s);
 				goto fail;