diff --git a/common/client_marshallers.h b/common/client_marshallers.h
index 85051a0..522f620 100644
--- a/common/client_marshallers.h
+++ b/common/client_marshallers.h
@@ -72,6 +72,7 @@ typedef struct {
     void (*msgc_smartcard_reader_add)(SpiceMarshaller *m, VSCMsgReaderAdd *msg);
 #endif
     void (*msgc_port_event)(SpiceMarshaller *m, SpiceMsgcPortEvent *msg);
+    void (*msgc_display_preferred_compression)(SpiceMarshaller *m, SpiceMsgcDisplayPreferredCompression *msg);
 } SpiceMessageMarshallers;
 
 SpiceMessageMarshallers *spice_message_marshallers_get(void);
diff --git a/common/messages.h b/common/messages.h
index a8a0eee..5f5de54 100644
--- a/common/messages.h
+++ b/common/messages.h
@@ -630,6 +630,10 @@ typedef struct SpiceMsgcPortEvent {
     uint8_t event;
 } SpiceMsgcPortEvent;
 
+typedef struct SpiceMsgcDisplayPreferredCompression {
+    uint8_t image_compression;
+} SpiceMsgcDisplayPreferredCompression;
+
 SPICE_END_DECLS
 
 #endif /* _H_SPICE_PROTOCOL */
diff --git a/spice.proto b/spice.proto
index 01493c9..2889802 100644
--- a/spice.proto
+++ b/spice.proto
@@ -361,6 +361,17 @@ enum8 image_type {
     LZ4,
 };
 
+enum8 image_compress {
+    INVALID  = 0,
+    OFF,
+    AUTO_GLZ,
+    AUTO_LZ,
+    QUIC,
+    GLZ,
+    LZ,
+    LZ4,
+};
+
 flags8 image_flags {
     CACHE_ME,
     HIGH_BITS_SET,
@@ -922,6 +933,10 @@ channel DisplayChannel : BaseChannel {
         int32 last_frame_delay;
         uint32 audio_delay;
     } stream_report;
+
+    message {
+        uint8 image_compression;
+    } preferred_compression;
 };
 
 flags16 keyboard_modifier_flags {