diff --git a/allegro_qoi.c b/allegro_qoi.c
index 866a01c..251d3be 100644
--- a/allegro_qoi.c
+++ b/allegro_qoi.c
@@ -35,16 +35,24 @@ ALLEGRO_BITMAP* _al_load_qoi_f(ALLEGRO_FILE* file, int flags) {
 	}
 	ALLEGRO_BITMAP* bmp = al_create_bitmap(meta.width, meta.height);
 	ALLEGRO_LOCKED_REGION* lock = al_lock_bitmap(
-		bmp,
-		fmt,
-		ALLEGRO_LOCK_WRITEONLY
+		bmp, fmt,
+		ALLEGRO_LOCK_READWRITE
 	);
 	al_set_new_bitmap_flags(oldflags);
 	if (!lock) return NULL;
 
 	const int qoi_pitch = meta.width * meta.channels;
-	for (int i = 0; i < meta.height; i++)
+	for (int i = 0; i < meta.height; i++) {
 		memcpy(lock->data + lock->pitch*i, data + qoi_pitch*i, qoi_pitch);
+		if (fmt == ALLEGRO_PIXEL_FORMAT_ABGR_8888
+		&& !(flags & ALLEGRO_NO_PREMULTIPLIED_ALPHA))
+			for (int p = 0; p < meta.width; p++) {
+				uint8_t* pixbytes = (lock->data + lock->pitch*i + p*4);
+				pixbytes[0] *= pixbytes[3]/255.0;
+				pixbytes[1] *= pixbytes[3]/255.0;
+				pixbytes[2] *= pixbytes[3]/255.0;
+			}
+	}
 
 	al_unlock_bitmap(bmp);
 	free(data); return bmp;