diff --git a/moonlight-common/src/main/java/com/limelight/nvstream/input/MouseButtonPacket.java b/moonlight-common/src/main/java/com/limelight/nvstream/input/MouseButtonPacket.java
index f64310f6..6460690d 100644
--- a/moonlight-common/src/main/java/com/limelight/nvstream/input/MouseButtonPacket.java
+++ b/moonlight-common/src/main/java/com/limelight/nvstream/input/MouseButtonPacket.java
@@ -7,4 +7,6 @@ public class MouseButtonPacket {
 	public static final byte BUTTON_LEFT = 0x01;
 	public static final byte BUTTON_MIDDLE = 0x02;
 	public static final byte BUTTON_RIGHT = 0x03;
+	public static final byte BUTTON_X1 = 0x04;
+	public static final byte BUTTON_X2 = 0x05;
 }
diff --git a/moonlight-common/src/main/jni/moonlight-core/moonlight-common-c b/moonlight-common/src/main/jni/moonlight-core/moonlight-common-c
index b2ebba21..558ba488 160000
--- a/moonlight-common/src/main/jni/moonlight-core/moonlight-common-c
+++ b/moonlight-common/src/main/jni/moonlight-core/moonlight-common-c
@@ -1 +1 @@
-Subproject commit b2ebba2167a204808418f638d2066066d73a35d7
+Subproject commit 558ba488e8eb7a614b6d9a93968c7c69683f942d