diff --git a/src/gui_w48.c b/src/gui_w48.c
index 00b5e66..2e09655 100644
--- a/src/gui_w48.c
+++ b/src/gui_w48.c
@@ -61,6 +61,7 @@
 #define DLG_FONT_NAME		"MS Sans Serif"
 #define DLG_FONT_POINT_SIZE	8
 #define DLG_MIN_MAX_WIDTH	400
+#define DLG_MIN_MAX_HEIGHT	400
 
 #define DLG_NONBUTTON_CONTROL	5000	/* First ID of non-button controls */