diff --git a/spice.proto b/spice.proto
index db015a5..3bca900 100644
--- a/spice.proto
+++ b/spice.proto
@@ -935,7 +935,7 @@ channel DisplayChannel : BaseChannel {
     } stream_report;
 
     message {
-        uint8 image_compression;
+        image_compression image_compression;
     } preferred_compression;
 };