diff --git a/samples/diodemo.c b/samples/diodemo.c
index 3e52f2fa9..46656246d 100644
--- a/samples/diodemo.c
+++ b/samples/diodemo.c
@@ -30,6 +30,7 @@
 
 
 
+#define DYN_BOX_DRAW
 #include <stddef.h>
 #include <stdlib.h>
 #include <limits.h>
diff --git a/samples/hello.c b/samples/hello.c
index 255dccd00..2eac0d8bb 100644
--- a/samples/hello.c
+++ b/samples/hello.c
@@ -7,6 +7,7 @@
 
 
 
+#define DYN_BOX_DRAW
 #include <stdlib.h>
 #include <string.h>
 #include <conio.h>