diff --git a/libs/core/codal.cpp b/libs/core/codal.cpp
index b1d3dc2b9df..d6e43c6ad0c 100644
--- a/libs/core/codal.cpp
+++ b/libs/core/codal.cpp
@@ -102,6 +102,13 @@ void registerWithDal(int id, int event, Action a, int flags) {
     registerGCPtr(a);
 }
 
+void unregisterWithDal(int id, int event, Action a) {
+    uBit.messageBus.ignore(id, event, dispatchForeground, a);
+    decr(a);
+    unregisterGCPtr(a);
+}
+
+
 void fiberDone(void *a) {
     decr((Action)a);
     unregisterGCPtr((Action)a);
diff --git a/libs/core/control.cpp b/libs/core/control.cpp
index 031c37e7b92..a62c59ba848 100644
--- a/libs/core/control.cpp
+++ b/libs/core/control.cpp
@@ -2,6 +2,10 @@
 
 extern uint32_t __StackTop;
 
+namespace pxt {
+    void unregisterWithDal(int id, int event, Action a);
+}
+
 /**
  * How to create the event.
  */
@@ -312,6 +316,14 @@ namespace control {
         registerWithDal(src, value, handler, (int)flags);
     }
 
+    /**
+     * Removes an event handler binding.
+     */
+    //%
+    void removeEventBinding(int src, int value, Action handler) {
+        unregisterWithDal(src, value, handler);
+    }
+
     /**
     * Gets the value of the last event executed on the bus
     */