diff --git a/conway.c b/conway.c
index a9253af..c3c1b7a 100644
--- a/conway.c
+++ b/conway.c
@@ -63,6 +63,7 @@ int main(int argc, char **argv) {
     tb_select_input_mode(TB_INPUT_MOUSE);
 
     int flipflop = 0;
+    // Cells are 2 characters wide so they look square
     int W = tb_width()/2, H = tb_height();
     char *buffers[2];
   resize:
@@ -84,7 +85,7 @@ int main(int argc, char **argv) {
         while (tb_peek_event(&ev, 0)) {
             switch (ev.type) {
                 case TB_EVENT_RESIZE:
-                    W = tb_width()/2, H = tb_height();
+                    W = ev.w/2, H = ev.h;
                     goto resize;
 
                 case TB_EVENT_KEY: