--- hatari/src/convert/spec320x16.c	2019/04/01 07:12:49	1.1.1.5
+++ hatari/src/convert/spec320x16.c	2019/04/01 07:13:18	1.1.1.6
@@ -104,7 +104,7 @@ static void ConvertSpec512_320x16Bit(voi
    Spec512_EndScanLine();
 
    /* Offset to next line */
-   pPCScreenDest = (void *)(((unsigned char *)pPCScreenDest)+PCScreenBytesPerLine);
+   pPCScreenDest = (((Uint8 *)pPCScreenDest)+PCScreenBytesPerLine);
   }
 
  bScreenContentsChanged = TRUE;