diff --git a/src/validationinterface.cpp b/src/validationinterface.cpp
index 24f2b96c7..b4efbe6ef 100644
--- a/src/validationinterface.cpp
+++ b/src/validationinterface.cpp
@@ -106,7 +106,9 @@ void UnregisterAllValidationInterfaces() {
 
 void CMainSignals::MempoolEntryRemoved(CTransactionRef ptx, MemPoolRemovalReason reason) {
     if (reason != MemPoolRemovalReason::BLOCK && reason != MemPoolRemovalReason::CONFLICT) {
-        m_internals->TransactionRemovedFromMempool(ptx);
+        m_internals->m_schedulerClient.AddToProcessQueue([ptx, this] {
+            m_internals->TransactionRemovedFromMempool(ptx);
+        });
     }
 }
 
diff --git a/src/validationinterface.h b/src/validationinterface.h
index 915c17695..9b5784ccc 100644
--- a/src/validationinterface.h
+++ b/src/validationinterface.h
@@ -45,6 +45,8 @@ protected:
      * size limiting, reorg (changes in lock times/coinbase maturity), or
      * replacement. This does not include any transactions which are included
      * in BlockConnectedDisconnected either in block->vtx or in txnConflicted.
+     *
+     * Called on a background thread.
      */
     virtual void TransactionRemovedFromMempool(const CTransactionRef &ptx) {}
     /**