diff --git a/kitty/cocoa_window.m b/kitty/cocoa_window.m
index 863cb1824..e8543289c 100644
--- a/kitty/cocoa_window.m
+++ b/kitty/cocoa_window.m
@@ -8,25 +8,6 @@
 
 #include "data-types.h"
 #include <Cocoa/Cocoa.h>
-#include <AvailabilityMacros.h>
-
-#if (MAC_OS_X_VERSION_MAX_ALLOWED < 101200)
-#define NSWindowStyleMaskTitled NSTitledWindowMask 
-#endif
-
-PyObject*
-cocoa_hide_titlebar(PyObject UNUSED *self, PyObject *window_id) {
-    NSWindow *window = (NSWindow*)PyLong_AsVoidPtr(window_id);
-    
-    @try {
-        [window setStyleMask:
-            [window styleMask] & ~NSWindowStyleMaskTitled];
-    } @catch (NSException *e) {
-        return PyErr_Format(PyExc_ValueError, "Failed to set style mask: %s: %s", [[e name] UTF8String], [[e reason] UTF8String]);
-    }
-    Py_RETURN_NONE;
-}
-
 
 PyObject*
 cocoa_get_lang(PyObject UNUSED *self) {
diff --git a/kitty/glfw.h b/kitty/glfw.h
index 2a226c0c8..ad3e0064d 100644
--- a/kitty/glfw.h
+++ b/kitty/glfw.h
@@ -20,12 +20,9 @@ PyObject* glfw_get_key_name(PyObject UNUSED *self, PyObject *args);
 PyObject* glfw_init_hint_string(PyObject UNUSED *self, PyObject *args);
 
 #ifdef __APPLE__
-PyObject* cocoa_hide_titlebar(PyObject UNUSED *self, PyObject *window_id);
 PyObject* cocoa_get_lang(PyObject UNUSED *self);
-#define COCOA_HIDE_TITLEBAR {"cocoa_hide_titlebar", (PyCFunction)cocoa_hide_titlebar, METH_O, ""}, 
 #define COCOA_GET_LANG {"cocoa_get_lang", (PyCFunction)cocoa_get_lang, METH_NOARGS, ""}, 
 #else
-#define COCOA_HIDE_TITLEBAR
 #define COCOA_GET_LANG
 #endif
 
@@ -40,6 +37,5 @@ PyObject* cocoa_get_lang(PyObject UNUSED *self);
     {"glfw_get_physical_dpi", (PyCFunction)glfw_get_physical_dpi, METH_NOARGS, ""}, \
     {"glfw_get_key_name", (PyCFunction)glfw_get_key_name, METH_VARARGS, ""}, \
     {"glfw_init_hint_string", (PyCFunction)glfw_init_hint_string, METH_VARARGS, ""}, \
-    COCOA_HIDE_TITLEBAR \
     COCOA_GET_LANG