diff --git a/engines/kyra/screen_v2.cpp b/engines/kyra/screen_v2.cpp
index 919b9086f33..f493b39f194 100644
--- a/engines/kyra/screen_v2.cpp
+++ b/engines/kyra/screen_v2.cpp
@@ -53,7 +53,7 @@ uint8 *Screen_v2::generateOverlay(const Palette &pal, uint8 *buffer, int startCo
 	uint8 *dst = buffer;
 	*dst++ = 0;
 
-	for (int i = 1; i != 255; ++i) {
+	for (int i = 1; i != 256; ++i) {
 		uint8 processedPalette[3];
 		byte col;