diff --git a/headers/OGBox.h b/headers/OGBox.h
index 0f90772..aacba99 100644
--- a/headers/OGBox.h
+++ b/headers/OGBox.h
@@ -39,7 +39,7 @@ typedef struct og_box_child_t
 @interface OGBox: OGWidget
 #ifdef OG_WIN32
 {
-	og_child_box_t *firstBorn;
+	og_box_child_t *firstBorn;
 }
 #endif