diff --git a/module.jai b/module.jai
index 16b2547..ed5bc37 100644
--- a/module.jai
+++ b/module.jai
@@ -222,6 +222,13 @@ init :: (_win_width: s32, _win_height: s32) {
     init_font(*JetBrainsMonoRegular, "fonts/JetBrainsMono-Regular.ttf", 12);
 }
 
+window_resize :: (_win_width: s32, _win_height: s32) {
+    win_width = _win_width;
+    win_height = _win_height;
+
+    window_projection_matrix = orthographic_projection_matrix(0.0, xx win_width, xx win_height, 0.0, -1.0, 1.0);
+}
+
 new_frame :: (_mouse: Vector2, _mouse_delta: Vector2, _mouse_wheel_delta: float, _mouse_left: bool) {
     frame += 1;
     mouse = _mouse;