diff --git a/include/Milsko/Core.h b/include/Milsko/Core.h
index f08727f..5a45bd2 100644
--- a/include/Milsko/Core.h
+++ b/include/Milsko/Core.h
@@ -4,6 +4,8 @@
 
 #include <Milsko/MachDep.h>
 
+typedef struct _MilskoClass* MilskoClass;
+
 #ifdef _MILSKO
 #include <Milsko/LowLevel.h>
 
@@ -13,6 +15,7 @@ typedef struct _Milsko {
 	HMILSKOLL lowlevel;
 	HMILSKO	  parent;
 	HMILSKO*  children;
+	MilskoClass class;
 }* HMILSKO;
 #else
 typedef void* HMILSKO;
diff --git a/src/core.c b/src/core.c
index 03bd07c..c1ee24e 100644
--- a/src/core.c
+++ b/src/core.c
@@ -9,6 +9,7 @@ HMILSKO MilskoCreateWidget(MilskoClass class, HMILSKO parent, int x, int y, unsi
 	h->parent   = parent;
 	h->children = NULL;
 	h->lowlevel = MilskoLLCreate(parent->lowlevel, x, y, width, height);
+	h->class    = class;
 
 	arrput(parent->children, h);