diff --git a/include/windows.media.idl b/include/windows.media.idl
index 1c0b3e82c1d..2c80e49a92b 100644
--- a/include/windows.media.idl
+++ b/include/windows.media.idl
@@ -26,6 +26,15 @@ import "windows.foundation.idl";
 namespace Windows.Media
 {
     interface IMediaControl;
+    interface IMediaMarker;
+
+    declare
+    {
+        interface Windows.Foundation.Collections.IIterable<Windows.Media.IMediaMarker*>;
+        interface Windows.Foundation.Collections.IIterator<Windows.Media.IMediaMarker*>;
+        interface Windows.Foundation.Collections.IVectorView<Windows.Media.IMediaMarker*>;
+        interface Windows.Foundation.Collections.IVector<Windows.Media.IMediaMarker*>;
+    }
 
     [
         contract(Windows.Foundation.UniversalApiContract, 1.0),
diff --git a/include/windows.media.speechsynthesis.idl b/include/windows.media.speechsynthesis.idl
index b2c86f37137..10fd2f5c897 100644
--- a/include/windows.media.speechsynthesis.idl
+++ b/include/windows.media.speechsynthesis.idl
@@ -54,12 +54,6 @@ namespace Windows {
     }
 }
 
-namespace Windows {
-    namespace Media {
-        interface IMediaMarker;
-    }
-}
-
 namespace Windows {
     namespace Media {
         namespace SpeechSynthesis {
@@ -67,7 +61,6 @@ namespace Windows {
                 interface Windows.Foundation.Collections.IIterator<Windows.Media.SpeechSynthesis.VoiceInformation*>;
                 interface Windows.Foundation.Collections.IIterable<Windows.Media.SpeechSynthesis.VoiceInformation*>;
                 interface Windows.Foundation.Collections.IVectorView<Windows.Media.SpeechSynthesis.VoiceInformation*>;
-                interface Windows.Foundation.Collections.IVectorView<Windows.Media.IMediaMarker*>;
                 interface Windows.Foundation.IAsyncOperation<Windows.Media.SpeechSynthesis.SpeechSynthesisStream*>;
                 interface Windows.Foundation.AsyncOperationCompletedHandler<Windows.Media.SpeechSynthesis.SpeechSynthesisStream*>;
             }