diff --git a/src/undo.h b/src/undo.h
index 650de2f30d..b482fd3089 100644
--- a/src/undo.h
+++ b/src/undo.h
@@ -6,7 +6,7 @@
 #ifndef BITCOIN_UNDO_H
 #define BITCOIN_UNDO_H
 
-#include <compressor.h> 
+#include <compressor.h>
 #include <consensus/consensus.h>
 #include <primitives/transaction.h>
 #include <serialize.h>