diff --git a/src/kernel/mempool_entry.h b/src/kernel/mempool_entry.h
index 969ddcd1ce277..886e1e1b3a74d 100644
--- a/src/kernel/mempool_entry.h
+++ b/src/kernel/mempool_entry.h
@@ -57,7 +57,7 @@ struct CompareIteratorByHash {
  * ("descendant" transactions).
  *
  * When a new entry is added to the mempool, we update the descendant state
- * (nCountWithDescendants, nSizeWithDescendants, and nModFeesWithDescendants) for
+ * (m_count_with_descendants, nSizeWithDescendants, and nModFeesWithDescendants) for
  * all ancestors of the newly added transaction.
  *
  */
@@ -87,13 +87,13 @@ class CTxMemPoolEntry
     // Information about descendants of this transaction that are in the
     // mempool; if we remove this transaction we must remove all of these
     // descendants as well.
-    uint64_t nCountWithDescendants{1}; //!< number of descendant transactions
+    int64_t m_count_with_descendants{1}; //!< number of descendant transactions
     // Using int64_t instead of int32_t to avoid signed integer overflow issues.
     int64_t nSizeWithDescendants;      //!< ... and size
     CAmount nModFeesWithDescendants;   //!< ... and total fees (all including us)
 
     // Analogous statistics for ancestor transactions
-    uint64_t nCountWithAncestors{1};
+    int64_t m_count_with_ancestors{1};
     // Using int64_t instead of int32_t to avoid signed integer overflow issues.
     int64_t nSizeWithAncestors;
     CAmount nModFeesWithAncestors;
@@ -153,13 +153,13 @@ class CTxMemPoolEntry
         lockPoints = lp;
     }
 
-    uint64_t GetCountWithDescendants() const { return nCountWithDescendants; }
+    uint64_t GetCountWithDescendants() const { return m_count_with_descendants; }
     int64_t GetSizeWithDescendants() const { return nSizeWithDescendants; }
     CAmount GetModFeesWithDescendants() const { return nModFeesWithDescendants; }
 
     bool GetSpendsCoinbase() const { return spendsCoinbase; }
 
-    uint64_t GetCountWithAncestors() const { return nCountWithAncestors; }
+    uint64_t GetCountWithAncestors() const { return m_count_with_ancestors; }
     int64_t GetSizeWithAncestors() const { return nSizeWithAncestors; }
     CAmount GetModFeesWithAncestors() const { return nModFeesWithAncestors; }
     int64_t GetSigOpCostWithAncestors() const { return nSigOpCostWithAncestors; }
diff --git a/src/txmempool.cpp b/src/txmempool.cpp
index 1286eba035d55..845fbdb66e5e8 100644
--- a/src/txmempool.cpp
+++ b/src/txmempool.cpp
@@ -370,8 +370,8 @@ void CTxMemPoolEntry::UpdateDescendantState(int32_t modifySize, CAmount modifyFe
     nSizeWithDescendants += modifySize;
     assert(nSizeWithDescendants > 0);
     nModFeesWithDescendants = SaturatingAdd(nModFeesWithDescendants, modifyFee);
-    nCountWithDescendants += uint64_t(modifyCount);
-    assert(int64_t(nCountWithDescendants) > 0);
+    m_count_with_descendants += modifyCount;
+    assert(m_count_with_descendants > 0);
 }
 
 void CTxMemPoolEntry::UpdateAncestorState(int32_t modifySize, CAmount modifyFee, int64_t modifyCount, int64_t modifySigOps)
@@ -379,8 +379,8 @@ void CTxMemPoolEntry::UpdateAncestorState(int32_t modifySize, CAmount modifyFee,
     nSizeWithAncestors += modifySize;
     assert(nSizeWithAncestors > 0);
     nModFeesWithAncestors = SaturatingAdd(nModFeesWithAncestors, modifyFee);
-    nCountWithAncestors += uint64_t(modifyCount);
-    assert(int64_t(nCountWithAncestors) > 0);
+    m_count_with_ancestors += modifyCount;
+    assert(m_count_with_ancestors > 0);
     nSigOpCostWithAncestors += modifySigOps;
     assert(int(nSigOpCostWithAncestors) >= 0);
 }
diff --git a/test/sanitizer_suppressions/ubsan b/test/sanitizer_suppressions/ubsan
index ae70fb49d482c..8808a83e32916 100644
--- a/test/sanitizer_suppressions/ubsan
+++ b/test/sanitizer_suppressions/ubsan
@@ -46,7 +46,6 @@ unsigned-integer-overflow:hash.cpp
 unsigned-integer-overflow:policy/fees.cpp
 unsigned-integer-overflow:prevector.h
 unsigned-integer-overflow:script/interpreter.cpp
-unsigned-integer-overflow:txmempool.cpp
 unsigned-integer-overflow:xoroshiro128plusplus.h
 implicit-integer-sign-change:compat/stdin.cpp
 implicit-integer-sign-change:compressor.h