diff --git a/common/kiway.cpp b/common/kiway.cpp
index 9004566f14..d8e93a00d5 100644
--- a/common/kiway.cpp
+++ b/common/kiway.cpp
@@ -246,6 +246,8 @@ KIWAY_PLAYER* KIWAY::Player( FRAME_T aFrameType, bool doCreate )
 
         KIFACE* kiface = KiFACE( face_type );
 
+        wxASSERT( kiface );
+
         KIWAY_PLAYER* frame = (KIWAY_PLAYER*) kiface->CreateWindow( m_top, aFrameType, this, KFCTL_PROJECT_SUITE );
 
         return m_player[aFrameType] = frame;