diff --git a/src/haterm.c b/src/haterm.c
index e66c41f23..f7ef4ddbe 100644
--- a/src/haterm.c
+++ b/src/haterm.c
@@ -48,7 +48,8 @@ const char *HTTP_HELP =
         "                     E.g. /?K=1\n"
         " - /?t=<time>        wait <time> milliseconds before responding.\n"
         "                     E.g. /?t=500\n"
-        " - /?k=<enable>      Enable transfer encoding chunked with only one chunk if >0.\n"
+        " - /?k=<enable>      Enable transfer encoding chunked with only one chunk if >0 (disable fast-forward and splicing).\n"
+        " - /?S=<enable>      Disable use of splice() to send data if <1.\n"
         " - /?R=<enable>      Enable sending random data if >0.\n"
         "\n"
         "Note that those arguments may be cumulated on one line separated by a set of\n"
@@ -324,6 +325,10 @@ static int hstream_ff_snd(struct connection *conn, struct hstream *hs)
 	}
 
 	nego_flags |= NEGO_FF_FL_EXACT_SIZE;
+#if defined(USE_LINUX_SPLICE)
+	if ((global.tune.options & GTUNE_USE_SPLICE) && !(sd->iobuf.flags & IOBUF_FL_NO_SPLICING))
+		nego_flags |= NEGO_FF_FL_MAY_SPLICE;
+#endif
 	len = se_nego_ff(sd, &BUF_NULL, hs->to_write, nego_flags);
 	if (sd->iobuf.flags & IOBUF_FL_NO_FF) {
 		TRACE_DEVEL("Fast-forwarding not supported by endpoint, disable it", HS_EV_HSTRM_RESP, hs);
@@ -334,10 +339,25 @@ static int hstream_ff_snd(struct connection *conn, struct hstream *hs)
 		goto out;
 	}
 
+#if defined(USE_LINUX_SPLICE)
+	if (sd->iobuf.pipe) {
+		if (len > master_pipesize)
+			len = master_pipesize;
+		ret = tee(master_pipe->cons, sd->iobuf.pipe->prod, len, SPLICE_F_NONBLOCK);
+		if (ret > 0) {
+			sd->iobuf.pipe->data += ret;
+			hs->to_write -= ret;
+		}
+		if (!hs->to_write)
+			sd->iobuf.flags |= IOBUF_FL_EOI;
+		goto done;
+	}
+#endif
 	hs->to_write -= hstream_add_ff_data(hs, sd, len);
 	if (!hs->to_write)
 		sd->iobuf.flags |= IOBUF_FL_EOI;
 
+  done:
 	if (se_done_ff(sd) != 0 || !(sd->iobuf.flags & (IOBUF_FL_FF_BLOCKED|IOBUF_FL_FF_WANT_ROOM))) {
 		/* Something was forwarding or the consumer states it is not
 		 * blocked anyore, don't reclaim more room */
diff --git a/src/haterm_init.c b/src/haterm_init.c
index 797e636d2..06752c4ca 100644
--- a/src/haterm_init.c
+++ b/src/haterm_init.c
@@ -26,6 +26,7 @@ static void haterm_usage(char *name)
 		"        -c <curves> : ECSDA curves (ex: \"P-256\", \"P-384\"...)\n"
 		"        -v : shows version\n"
 		"        -d : enable the traces for all http protocols\n"
+		"        -dS : disables splice() usage even when available\n"
 		"        -dZ : disable zero-copy forwarding\n"
 		"        --" QUIC_BIND_LONG_OPT " <opts> : append options to QUIC \"bind\" lines\n"
 		"        --" TCP_BIND_LONG_OPT " <opts> : append options to TCP \"bind\" lines\n"
@@ -40,6 +41,9 @@ static void haterm_usage(char *name)
 static const char *haterm_cfg_dflt_str =
         "defaults\n"
             "\tmode haterm\n"
+#if defined(USE_LINUX_SPLICE)
+	    "\toption splice-response\n"
+#endif
             "\ttimeout client 25s\n";
 
 #define HATERM_CFG_CRT_STORE_STR_FMT \
@@ -247,6 +251,11 @@ void haproxy_init_args(int argc, char **argv)
 				else
 					haterm_usage(progname);
 			}
+#if defined(USE_LINUX_SPLICE)
+			else if (*opt == 'd' && *(opt+1) == 'S') {
+				global.tune.options &= ~GTUNE_USE_SPLICE;
+			}
+#endif
 			else if (*opt == 'd' && *(opt+1) == 'Z') {
 				global.tune.no_zero_copy_fwd |= NO_ZERO_COPY_FWD;
 			}