diff --git a/src/system/boot/platform/atari_m68k/console.cpp b/src/system/boot/platform/atari_m68k/console.cpp
index b2a3655367..beb7c908ae 100644
--- a/src/system/boot/platform/atari_m68k/console.cpp
+++ b/src/system/boot/platform/atari_m68k/console.cpp
@@ -74,7 +74,7 @@ ConsoleHandle::WriteAt(void */*cookie*/, off_t /*pos*/, const void *buffer,
 	size_t bufferSize)
 {
 	const char *string = (const char *)buffer;
-	int i;
+	size_t i;
 
 	// be nice to our audience and replace single "\n" with "\r\n"