diff --git a/rainbow/Skeleton/Ctrl.cpp b/rainbow/Skeleton/Ctrl.cpp
index 6838d5574..6f6608534 100644
--- a/rainbow/Skeleton/Ctrl.cpp
+++ b/rainbow/Skeleton/Ctrl.cpp
@@ -6,6 +6,14 @@
 
 NAMESPACE_UPP
 
+void ChHostSkin(void)
+{
+}
+
+void WakeUpGuiThread(void)
+{
+}
+
 void Ctrl::GuiPlatformConstruct()
 {
 }
diff --git a/rainbow/Skeleton/Image.cpp b/rainbow/Skeleton/Image.cpp
index c280ba956..15f955b10 100644
--- a/rainbow/Skeleton/Image.cpp
+++ b/rainbow/Skeleton/Image.cpp
@@ -81,6 +81,7 @@ ImageDraw::~ImageDraw()
 }
 
 Image Image::Arrow() { return Null; }
+Image Image::Hand() { return Null; }
 Image Image::Wait() { return Null; }
 Image Image::IBeam() { return Null; }
 Image Image::No() { return Null; }