diff --git a/src/validation.h b/src/validation.h
--- a/src/validation.h
+++ b/src/validation.h
@@ -628,6 +628,10 @@
     CBlockIndex *InsertBlockIndex(const BlockHash &hash)
         EXCLUSIVE_LOCKS_REQUIRED(cs_main);
 
+    //! Mark one block file as pruned (modify associated database entries)
+    void PruneOneBlockFile(const int fileNumber)
+        EXCLUSIVE_LOCKS_REQUIRED(cs_main);
+
     /**
      * If a block header hasn't already been seen, call CheckBlockHeader on it,
      * ensure that it doesn't descend from an invalid block, and then add it to
@@ -1215,10 +1219,6 @@
                                 const CBlockIndex **ppindex = nullptr)
         LOCKS_EXCLUDED(cs_main);
 
-    //! Mark one block file as pruned (modify associated database entries)
-    void PruneOneBlockFile(const int fileNumber)
-        EXCLUSIVE_LOCKS_REQUIRED(cs_main);
-
     //! Load the block tree and coins database from disk, initializing state if
     //! we're running with -reindex
     bool LoadBlockIndex(const Consensus::Params &params)
diff --git a/src/validation.cpp b/src/validation.cpp
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -4506,11 +4506,11 @@
     return retval;
 }
 
-void ChainstateManager::PruneOneBlockFile(const int fileNumber) {
+void BlockManager::PruneOneBlockFile(const int fileNumber) {
     AssertLockHeld(cs_main);
     LOCK(cs_LastBlockFile);
 
-    for (const auto &entry : m_blockman.m_block_index) {
+    for (const auto &entry : m_block_index) {
         CBlockIndex *pindex = entry.second;
         if (pindex->nFile == fileNumber) {
             pindex->nStatus = pindex->nStatus.withData(false).withUndo(false);
@@ -4523,14 +4523,13 @@
             // to be downloaded again in order to consider its chain, at which
             // point it would be considered as a candidate for
             // m_blocks_unlinked or setBlockIndexCandidates.
-            auto range =
-                m_blockman.m_blocks_unlinked.equal_range(pindex->pprev);
+            auto range = m_blocks_unlinked.equal_range(pindex->pprev);
             while (range.first != range.second) {
                 std::multimap<CBlockIndex *, CBlockIndex *>::iterator _it =
                     range.first;
                 range.first++;
                 if (_it->second == pindex) {
-                    m_blockman.m_blocks_unlinked.erase(_it);
+                    m_blocks_unlinked.erase(_it);
                 }
             }
         }
@@ -4574,7 +4573,7 @@
             vinfoBlockFile[fileNumber].nHeightLast > nLastBlockWeCanPrune) {
             continue;
         }
-        chainman.PruneOneBlockFile(fileNumber);
+        chainman.m_blockman.PruneOneBlockFile(fileNumber);
         setFilesToPrune.insert(fileNumber);
         count++;
     }
@@ -4665,7 +4664,7 @@
                 continue;
             }
 
-            chainman.PruneOneBlockFile(fileNumber);
+            chainman.m_blockman.PruneOneBlockFile(fileNumber);
             // Queue up the files for removal
             setFilesToPrune.insert(fileNumber);
             nCurrentUsage -= nBytesToPrune;
diff --git a/src/wallet/test/wallet_tests.cpp b/src/wallet/test/wallet_tests.cpp
--- a/src/wallet/test/wallet_tests.cpp
+++ b/src/wallet/test/wallet_tests.cpp
@@ -127,7 +127,8 @@
     // Prune the older block file.
     {
         LOCK(cs_main);
-        Assert(m_node.chainman)->PruneOneBlockFile(oldTip->GetBlockPos().nFile);
+        Assert(m_node.chainman)
+            ->m_blockman.PruneOneBlockFile(oldTip->GetBlockPos().nFile);
     }
     UnlinkPrunedFiles({oldTip->GetBlockPos().nFile});
 
@@ -157,7 +158,8 @@
     // Prune the remaining block file.
     {
         LOCK(cs_main);
-        Assert(m_node.chainman)->PruneOneBlockFile(newTip->GetBlockPos().nFile);
+        Assert(m_node.chainman)
+            ->m_blockman.PruneOneBlockFile(newTip->GetBlockPos().nFile);
     }
     UnlinkPrunedFiles({newTip->GetBlockPos().nFile});
 
@@ -197,7 +199,8 @@
     // Prune the older block file.
     {
         LOCK(cs_main);
-        Assert(m_node.chainman)->PruneOneBlockFile(oldTip->GetBlockPos().nFile);
+        Assert(m_node.chainman)
+            ->m_blockman.PruneOneBlockFile(oldTip->GetBlockPos().nFile);
     }
     UnlinkPrunedFiles({oldTip->GetBlockPos().nFile});