diff --git a/src/txmempool.h b/src/txmempool.h
--- a/src/txmempool.h
+++ b/src/txmempool.h
@@ -30,6 +30,8 @@
 class CBlockIndex;
 class Config;
 
+extern CCriticalSection cs_main;
+
 inline double AllowFreeThreshold() {
     return (144 * COIN) / (250 * SATOSHI);
 }
@@ -595,7 +597,8 @@
         const CTransaction &tx,
         MemPoolRemovalReason reason = MemPoolRemovalReason::UNKNOWN);
     void removeForReorg(const Config &config, const CCoinsViewCache *pcoins,
-                        unsigned int nMemPoolHeight, int flags);
+                        unsigned int nMemPoolHeight, int flags)
+        EXCLUSIVE_LOCKS_REQUIRED(cs_main);
     void removeConflicts(const CTransaction &tx);
     void removeForBlock(const std::vector<CTransactionRef> &vtx,
                         unsigned int nBlockHeight);
diff --git a/src/txmempool.cpp b/src/txmempool.cpp
--- a/src/txmempool.cpp
+++ b/src/txmempool.cpp
@@ -556,8 +556,7 @@
 
 void CTxMemPool::removeForReorg(const Config &config,
                                 const CCoinsViewCache *pcoins,
-                                unsigned int nMemPoolHeight, int flags)
-    EXCLUSIVE_LOCKS_REQUIRED(cs_main) {
+                                unsigned int nMemPoolHeight, int flags) {
     // Remove transactions spending a coinbase which are now immature and
     // no-longer-final transactions.
     LOCK(cs);
diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -4665,8 +4665,7 @@
 }
 
 bool CWalletTx::AcceptToMemoryPool(const Amount nAbsurdFee,
-                                   CValidationState &state)
-    EXCLUSIVE_LOCKS_REQUIRED(cs_main) {
+                                   CValidationState &state) {
     // Quick check to avoid re-setting fInMempool to false
     if (g_mempool.exists(tx->GetId())) {
         return false;