1 files changed, 1 insertions, 1 deletions

diff --git a/src/gnu.h b/src/gnu.h
index b699ffe4604..b5cf7261f7d 100644
--- a/src/gnu.h
+++ b/src/gnu.h
@@ -1,6 +1,6 @@
 #define gnu_width 50
 #define gnu_height 50
-static char gnu_bits[] = {
+static unsigned char gnu_bits[] = {
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xe0, 0x01, 0x00, 0x00,