diff --git a/src/undo.h b/src/undo.h
--- a/src/undo.h
+++ b/src/undo.h
@@ -10,7 +10,6 @@
 #include "coins.h"
 #include "compressor.h"
 #include "consensus/consensus.h"
-#include "primitives/transaction.h"
 #include "serialize.h"
 
 class CBlock;