diff --git a/.changeset/go-sdk-chat.md b/.changeset/go-sdk-chat.md
new file mode 100644
index 000000000..fabe69fbd
--- /dev/null
+++ b/.changeset/go-sdk-chat.md
@@ -0,0 +1,5 @@
+---
+"github.com/livekit/protocol": patch
+---
+
+Go SDK support for chat messages.
\ No newline at end of file
diff --git a/livekit/types.go b/livekit/types.go
index 32edd4e26..4666d67bf 100644
--- a/livekit/types.go
+++ b/livekit/types.go
@@ -319,3 +319,12 @@ func applyMapDiff(dst *map[string]string, diff map[string]string) {
 	}
 	*dst = m
 }
+
+// ToProto implements DataPacket in Go SDK.
+func (p *ChatMessage) ToProto() *DataPacket {
+	return &DataPacket{
+		Value: &DataPacket_ChatMessage{
+			ChatMessage: p,
+		},
+	}
+}