diff --git a/common/rfb/DecodeManager.h b/common/rfb/DecodeManager.h
index fbb7f77..2098063 100644
--- a/common/rfb/DecodeManager.h
+++ b/common/rfb/DecodeManager.h
@@ -32,7 +32,7 @@
 }
 
 namespace rdr {
-  class Exception;
+  struct Exception;
   class MemOutStream;
 }
 
@@ -40,7 +40,7 @@
   class CConnection;
   class Decoder;
   class ModifiablePixelBuffer;
-  class Rect;
+  struct Rect;
 
   class DecodeManager {
   public: