diff --git a/sound/firewire/fireface/ff-protocol-former.c b/sound/firewire/fireface/ff-protocol-former.c
index 9c0ae50e88d1d88fd404c1a05765765f1d38a2c2..266e4892a81837a6d6c5947fb31b55794f2e947a 100644
--- a/sound/firewire/fireface/ff-protocol-former.c
+++ b/sound/firewire/fireface/ff-protocol-former.c
@@ -375,7 +375,8 @@ static void ff800_finish_session(struct snd_ff *ff)
 			   FF800_ISOC_COMM_STOP, &reg, sizeof(reg), 0);
 }
 
-static void ff800_handle_midi_msg(struct snd_ff *ff, __le32 *buf, size_t length)
+static void ff800_handle_midi_msg(struct snd_ff *ff, unsigned int offset,
+				  __le32 *buf, size_t length)
 {
 	int i;
 
@@ -502,7 +503,8 @@ static void ff400_finish_session(struct snd_ff *ff)
 			   FF400_ISOC_COMM_STOP, &reg, sizeof(reg), 0);
 }
 
-static void ff400_handle_midi_msg(struct snd_ff *ff, __le32 *buf, size_t length)
+static void ff400_handle_midi_msg(struct snd_ff *ff, unsigned int offset,
+				  __le32 *buf, size_t length)
 {
 	int i;
 
diff --git a/sound/firewire/fireface/ff-transaction.c b/sound/firewire/fireface/ff-transaction.c
index 065e045d3fb5ab2d4e1c821d6e6bde70d100e68f..d3fde813ce17dc6b9d881345176300e1f5affecc 100644
--- a/sound/firewire/fireface/ff-transaction.c
+++ b/sound/firewire/fireface/ff-transaction.c
@@ -146,7 +146,9 @@ static void handle_midi_msg(struct fw_card *card, struct fw_request *request,
 
 	fw_send_response(card, request, RCODE_COMPLETE);
 
-	ff->spec->protocol->handle_midi_msg(ff, buf, length);
+	offset -= ff->async_handler.offset;
+	ff->spec->protocol->handle_midi_msg(ff, (unsigned int)offset, buf,
+					    length);
 }
 
 static int allocate_own_address(struct snd_ff *ff, int i)
diff --git a/sound/firewire/fireface/ff.h b/sound/firewire/fireface/ff.h
index 8aea7920b57f3d38eebfa352b836c47e38bde7a7..ddcffb8d85c6c68a11929dfc96f1123758d46e25 100644
--- a/sound/firewire/fireface/ff.h
+++ b/sound/firewire/fireface/ff.h
@@ -103,7 +103,8 @@ enum snd_ff_clock_src {
 };
 
 struct snd_ff_protocol {
-	void (*handle_midi_msg)(struct snd_ff *ff, __le32 *buf, size_t length);
+	void (*handle_midi_msg)(struct snd_ff *ff, unsigned int offset,
+				__le32 *buf, size_t length);
 	int (*get_clock)(struct snd_ff *ff, unsigned int *rate,
 			 enum snd_ff_clock_src *src);
 	int (*switch_fetching_mode)(struct snd_ff *ff, bool enable);