diff --git a/src/checkpoints.h b/src/checkpoints.h
index 215e65c3a..a31727ce0 100644
--- a/src/checkpoints.h
+++ b/src/checkpoints.h
@@ -6,6 +6,7 @@
 #define BITCOIN_CHECKPOINTS_H
 
 #include "uint256.h"
+#include "chainparams.h"
 
 #include <map>