diff --git a/src/gui_w32.c b/src/gui_w32.c
index 67895cc..52cadea 100644
--- a/src/gui_w32.c
+++ b/src/gui_w32.c
@@ -3385,8 +3385,9 @@
 }
 
 /*
- * Called when the font changed while the window is maximized.  Compute the
- * new Rows and Columns.  This is like resizing the window.
+ * Called when the font changed while the window is maximized or GO_KEEPWINSIZE
+ * is set.  Compute the new Rows and Columns.  This is like resizing the
+ * window.
  */
     void
 gui_mch_newfont(void)