diff --git a/DOCS.md b/DOCS.md
index 55f2f83..9993f97 100644
--- a/DOCS.md
+++ b/DOCS.md
@@ -173,6 +173,8 @@ Emits when a color sensor is activated.
 ### "tilt" (port, x, y)
 Emits when a tilt sensor is activated.
 
+Note: If the event if fired from the Move Hub's inbuild tilt sensor, the special port "TILT" is used.
+
 **Kind**: event emitted by [<code>BoostHub</code>](#BoostHub)  
 
 | Param | Type |
diff --git a/README.md b/README.md
index 8662949..cb37624 100644
--- a/README.md
+++ b/README.md
@@ -213,6 +213,8 @@ Emits when a color sensor is activated.
 ### "tilt" (port, x, y)
 Emits when a tilt sensor is activated.
 
+Note: If the event if fired from the Move Hub's inbuild tilt sensor, the special port "TILT" is used.
+
 **Kind**: event emitted by [<code>BoostHub</code>](#BoostHub)  
 
 | Param | Type |
diff --git a/boosthub.ts b/boosthub.ts
index ee17ed2..679f591 100644
--- a/boosthub.ts
+++ b/boosthub.ts
@@ -321,6 +321,8 @@ export class BoostHub extends Hub {
                     this._lastTiltY = tiltY;
                     /**
                      * Emits when a tilt sensor is activated.
+                     *
+                     * Note: If the event if fired from the Move Hub's inbuild tilt sensor, the special port "TILT" is used.
                      * @event BoostHub#tilt
                      * @param {string} port
                      * @param {number} x