diff --git a/micropython/extmod/modtrezorui/font_bitmap.h b/micropython/extmod/modtrezorui/font_bitmap.h
index 88e3090a..71de4c11 100644
--- a/micropython/extmod/modtrezorui/font_bitmap.h
+++ b/micropython/extmod/modtrezorui/font_bitmap.h
@@ -1,3 +1,3 @@
 #include <stdint.h>
 
-const uint8_t *Font_Bitmap;
+extern const uint8_t *Font_Bitmap;