diff --git a/src/txmempool.cpp b/src/txmempool.cpp
index f68d67764..d5e3ad5c2 100644
--- a/src/txmempool.cpp
+++ b/src/txmempool.cpp
@@ -317,7 +317,7 @@ void CTxMemPoolEntry::UpdateDescendantState(int64_t modifySize, CAmount modifyFe
     assert(int64_t(nCountWithDescendants) > 0);
 }
 
-void CTxMemPoolEntry::UpdateAncestorState(int64_t modifySize, CAmount modifyFee, int64_t modifyCount, int modifySigOps)
+void CTxMemPoolEntry::UpdateAncestorState(int64_t modifySize, CAmount modifyFee, int64_t modifyCount, int64_t modifySigOps)
 {
     nSizeWithAncestors += modifySize;
     assert(int64_t(nSizeWithAncestors) > 0);
diff --git a/src/txmempool.h b/src/txmempool.h
index b07886579..83850d8a3 100644
--- a/src/txmempool.h
+++ b/src/txmempool.h
@@ -109,7 +109,7 @@ public:
     // Adjusts the descendant state.
     void UpdateDescendantState(int64_t modifySize, CAmount modifyFee, int64_t modifyCount);
     // Adjusts the ancestor state
-    void UpdateAncestorState(int64_t modifySize, CAmount modifyFee, int64_t modifyCount, int modifySigOps);
+    void UpdateAncestorState(int64_t modifySize, CAmount modifyFee, int64_t modifyCount, int64_t modifySigOps);
     // Updates the fee delta used for mining priority score, and the
     // modified fees with descendants.
     void UpdateFeeDelta(int64_t feeDelta);