2 files changed, 3 insertions, 3 deletions
diff --git a/examples/decode_gif.c b/examples/decode_gif.c
index fc508fd..6f77fb1 100644
--- a/examples/decode_gif.c
+++ b/examples/decode_gif.c
@@ -31,7 +31,7 @@ void warning(const char *context, int code);
 void *bitmap_create(int width, int height);
 void bitmap_set_opaque(void *bitmap, bool opaque);
 bool bitmap_test_opaque(void *bitmap);
-char *bitmap_get_buffer(void *bitmap);
+unsigned char *bitmap_get_buffer(void *bitmap);
 void bitmap_destroy(void *bitmap);
 void bitmap_modified(void *bitmap);
 
@@ -199,7 +199,7 @@ bool bitmap_test_opaque(void *bitmap)
 }
 
 
-char *bitmap_get_buffer(void *bitmap)
+unsigned char *bitmap_get_buffer(void *bitmap)
 {
 	assert(bitmap);
 	return bitmap;
diff --git a/libnsgif.h b/libnsgif.h
index 5c35343..76207c9 100644
--- a/libnsgif.h
+++ b/libnsgif.h
@@ -63,7 +63,7 @@ typedef struct gif_frame {
 */
 typedef void* (*gif_bitmap_cb_create)(int width, int height);
 typedef void (*gif_bitmap_cb_destroy)(void *bitmap);
-typedef char* (*gif_bitmap_cb_get_buffer)(void *bitmap);
+typedef unsigned char* (*gif_bitmap_cb_get_buffer)(void *bitmap);
 typedef void (*gif_bitmap_cb_set_opaque)(void *bitmap, bool opaque);
 typedef bool (*gif_bitmap_cb_test_opaque)(void *bitmap);
 typedef void (*gif_bitmap_cb_modified)(void *bitmap);