diff --git a/src/g_statusbar/sbarinfo.cpp b/src/g_statusbar/sbarinfo.cpp
index d652ced34..efb0f9708 100644
--- a/src/g_statusbar/sbarinfo.cpp
+++ b/src/g_statusbar/sbarinfo.cpp
@@ -1596,7 +1596,7 @@ DEFINE_ACTION_FUNCTION_NATIVE(DSBarInfo, ShowPop, SBarInfo_ShowPop)
 	return 0;
 }
 
-static int SBarInfo_GetProtrusion(DSBarInfo *self, float scale)
+static int SBarInfo_GetProtrusion(DSBarInfo *self, double scale)
 {
 	return self->_GetProtrusion(scale);
 }
diff --git a/src/scripting/vm/vm.h b/src/scripting/vm/vm.h
index 481705345..e451cb80c 100644
--- a/src/scripting/vm/vm.h
+++ b/src/scripting/vm/vm.h
@@ -590,7 +590,9 @@ struct DirectNativeDesc
 	template<typename T> struct is_valid<T&> { static const bool value = true; };
 	template<> struct is_valid<void> { static const bool value = true; };
 	template<> struct is_valid<int> { static const bool value = true; };
+	template<> struct is_valid<unsigned int> { static const bool value = true; };
 	template<> struct is_valid<double> { static const bool value = true; };
+	template<> struct is_valid<bool> { static const bool value = true; };
 
 	operator void *() const { return Ptr; }