diff --git a/src/consensus/params.h b/src/consensus/params.h
index 233d9d391..855729ff0 100644
--- a/src/consensus/params.h
+++ b/src/consensus/params.h
@@ -87,6 +87,7 @@ struct Params {
     int nMajorityEnforceBlockUpgrade;
     int nMajorityRejectBlockOutdated;
     int nMajorityWindow;
+    int fPowAllowMinDifficultyBlocks;
     NetworkUpgrade vUpgrades[MAX_NETWORK_UPGRADES];
     /** Proof of work parameters */
     uint256 powLimit;