1 files changed, 2 insertions, 2 deletions

diff --git a/src/gba/gba.h b/src/gba/gba.h
index e475ea9..797c71e 100644
--- a/src/gba/gba.h
+++ b/src/gba/gba.h
@@ -342,8 +342,8 @@ unpack_1bb(u8 hex) {
 // Unpack N tiles packed at 1bpp.
 static inline
 void
-unpack_tiles(u32 *src, u32 *dst, size_t n_tiles) {
-    u32 *target_src = src + n_tiles * 2;
+unpack_tiles(const u32 *src, u32 *dst, size_t n_tiles) {
+    const u32 *target_src = src + n_tiles * 2;
     while (src != target_src) {
         *dst++ = unpack_1bb((*src >> 24) & 0xFF);
         *dst++ = unpack_1bb((*src >> 16) & 0xFF);