diff --git a/proto/decentraland/kernel/apis/restricted_actions.proto b/proto/decentraland/kernel/apis/restricted_actions.proto
index 97d19faf..3a92b91f 100644
--- a/proto/decentraland/kernel/apis/restricted_actions.proto
+++ b/proto/decentraland/kernel/apis/restricted_actions.proto
@@ -2,6 +2,7 @@ syntax = "proto3";
 package decentraland.kernel.apis;
 
 import "decentraland/common/vectors.proto";
+import "decentraland/sdk/components/common/avatar_mask.proto";
 
 message MovePlayerToRequest {
   decentraland.common.Vector3 new_relative_position = 1;
@@ -16,6 +17,7 @@ message TeleportToRequest {
 
 message TriggerEmoteRequest {
   string predefined_emote = 1;
+  optional decentraland.sdk.components.common.AvatarMask mask = 2;
 }
 
 message ChangeRealmRequest {
@@ -40,6 +42,7 @@ message CommsAdapterRequest {
 message TriggerSceneEmoteRequest {
   string src = 1;
   optional bool loop = 2;
+  optional decentraland.sdk.components.common.AvatarMask mask = 3;
 }
 
 message SuccessResponse {
diff --git a/proto/decentraland/sdk/components/common/avatar_mask.proto b/proto/decentraland/sdk/components/common/avatar_mask.proto
new file mode 100644
index 00000000..8b058a1f
--- /dev/null
+++ b/proto/decentraland/sdk/components/common/avatar_mask.proto
@@ -0,0 +1,7 @@
+syntax = "proto3";
+package decentraland.sdk.components.common;
+
+// Mask for which bones an animation applies to.
+enum AvatarMask {
+  AM_UPPER_BODY = 0;
+}
\ No newline at end of file