1 files changed, 8 insertions, 2 deletions
diff --git a/graphics/thumbnail.h b/graphics/thumbnail.h
index 9341582aa1..0bfeeda2ed 100644
--- a/graphics/thumbnail.h
+++ b/graphics/thumbnail.h
@@ -25,11 +25,17 @@
 #ifndef GRAPHICS_THUMBNAIL_H
 #define GRAPHICS_THUMBNAIL_H
 
-#include "common/stream.h"
-#include "graphics/surface.h"
+#include "common/scummsys.h"
+
+namespace Common{
+class SeekableReadStream;
+class WriteStream;
+}
 
 namespace Graphics {
 
+struct Surface;
+
 /**
  * Checks for presence of the thumbnail save header.
  * Seeks automatically back to start position after check.