diff --git a/src/wallet/init.cpp b/src/wallet/init.cpp
--- a/src/wallet/init.cpp
+++ b/src/wallet/init.cpp
@@ -7,6 +7,7 @@
 #include <config.h>
 #include <init.h>
 #include <net.h>
+#include <scheduler.h>
 #include <util.h>
 #include <utilmoneystr.h>
 #include <validation.h>
@@ -391,8 +392,16 @@
 
 void WalletInit::Start(CScheduler &scheduler) const {
     for (CWallet *pwallet : GetWallets()) {
-        pwallet->postInitProcess(scheduler);
+        pwallet->postInitProcess();
     }
+
+    // Run a thread to flush wallet periodically
+    scheduler.scheduleEvery(
+        [] {
+            MaybeCompactWalletDB();
+            return true;
+        },
+        500);
 }
 
 void WalletInit::Flush() const {
diff --git a/src/wallet/wallet.h b/src/wallet/wallet.h
--- a/src/wallet/wallet.h
+++ b/src/wallet/wallet.h
@@ -63,7 +63,6 @@
 class COutput;
 class CReserveKey;
 class CScript;
-class CScheduler;
 class CTxMemPool;
 class CWalletTx;
 
@@ -1210,7 +1209,7 @@
      * Gives the wallet a chance to register repetitive tasks and complete
      * post-init tasks
      */
-    void postInitProcess(CScheduler &scheduler);
+    void postInitProcess();
 
     bool BackupWallet(const std::string &strDest);
 
diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -21,7 +21,6 @@
 #include <primitives/transaction.h>
 #include <random.h>
 #include <rpc/server.h> // for IsDeprecatedRPCEnabled
-#include <scheduler.h>
 #include <script/script.h>
 #include <script/sighashtype.h>
 #include <script/sign.h>
@@ -4514,22 +4513,10 @@
     return walletInstance;
 }
 
-std::atomic<bool> CWallet::fFlushScheduled(false);
-
-void CWallet::postInitProcess(CScheduler &scheduler) {
+void CWallet::postInitProcess() {
     // Add wallet transactions that aren't already in a block to mempool.
     // Do this here as mempool requires genesis block to be loaded.
     ReacceptWalletTransactions();
-
-    // Run a thread to flush wallet periodically.
-    if (!CWallet::fFlushScheduled.exchange(true)) {
-        scheduler.scheduleEvery(
-            []() {
-                MaybeCompactWalletDB();
-                return true;
-            },
-            500);
-    }
 }
 
 bool CWallet::BackupWallet(const std::string &strDest) {