diff --git a/silicon.h b/silicon.h
index 146ccd9..cc80d4e 100644
--- a/silicon.h
+++ b/silicon.h
@@ -1865,8 +1865,8 @@ void si_initNS(void) {
 	SI_NS_FUNCTIONS[NS_WINDOW_PERFORM_MINIATURIZE_CODE] = sel_getUid("performMiniaturize:");
 	SI_NS_FUNCTIONS[NS_WINDOW_PERFORM_ZOOM_CODE] = sel_getUid("performZoom:");
 	SI_NS_FUNCTIONS[NS_WINDOW_STYLE_MASK_CODE] = sel_getUid("styleMask");
-	SI_NS_FUNCTIONS[NS_WINDOW_SET_MAX_SIZE_CODE] = sel_getUid("setMinSize:");
-	SI_NS_FUNCTIONS[NS_WINDOW_SET_MIN_SIZE_CODE] = sel_getUid("setMaxSize:");
+	SI_NS_FUNCTIONS[NS_WINDOW_SET_MAX_SIZE_CODE] = sel_getUid("setMaxSize:");
+	SI_NS_FUNCTIONS[NS_WINDOW_SET_MIN_SIZE_CODE] = sel_getUid("setMinSize:");
 	SI_NS_FUNCTIONS[NS_GRAPHICS_CONTEXT_WIDTH_WINDOW_CODE] = sel_getUid("graphicsContextWithWindow:");
 	SI_NS_FUNCTIONS[NS_CURSOR_PERFORM_SELECTOR] = sel_getUid("performSelector:");
 	SI_NS_FUNCTIONS[NS_NOTIFICATIONCENTER_ADD_OBSERVER] = sel_getUid("addObserver:selector:name:object:");
@@ -2180,14 +2180,14 @@ void NSWindow_setMaxSize(NSWindow* window, NSSize size) {
 	void* func = SI_NS_FUNCTIONS[NS_WINDOW_SET_MAX_SIZE_CODE];
 
 	return ((void (*)(id, SEL, NSSize))objc_msgSend)
-				(SI_NS_CLASSES[NS_WINDOW_CODE], func, size);
+				(window, func, size);
 }
 
 void NSWindow_setMinSize(NSWindow* window, NSSize size) {
 	void* func = SI_NS_FUNCTIONS[NS_WINDOW_SET_MIN_SIZE_CODE];
 
 	return ((void (*)(id, SEL, NSSize))objc_msgSend)
-				(SI_NS_CLASSES[NS_WINDOW_CODE], func, size);
+				(window, func, size);
 }
 
 NSView* NSWindow_contentView(NSWindow* window) {