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-rw-r--r--engines/sherlock/resources.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/engines/sherlock/resources.cpp b/engines/sherlock/resources.cpp
index e499b698c1..878747a63c 100644
--- a/engines/sherlock/resources.cpp
+++ b/engines/sherlock/resources.cpp
@@ -354,7 +354,7 @@ void ImageFile::decompressFrame(ImageFrame &frame, const byte *src) {
if (frame._paletteBase) {
// Nibble-packed
byte *pDest = (byte *)frame._frame.getPixels();
- for (int idx = 0; idx < frame._size; ++idx, ++src) {
+ for (uint idx = 0; idx < frame._size; ++idx, ++src) {
*pDest++ = *src & 0xF;
*pDest++ = (*src >> 4);
}