diff --git a/src/node/blockstorage.cpp b/src/node/blockstorage.cpp
index 62abcbc007d..a8d5018fd33 100644
--- a/src/node/blockstorage.cpp
+++ b/src/node/blockstorage.cpp
@@ -487,10 +487,18 @@ bool BlockManager::LoadBlockIndex(const std::optional<uint256>& snapshot_blockha
                 pindex->m_chain_tx_count = pindex->nTx;
             }
         }
+
+        if (pindex->nStatus & BLOCK_FAILED_CHILD) {
+            // BLOCK_FAILED_CHILD is deprecated, but may still exist on disk. Replace it with BLOCK_FAILED_VALID.
+            pindex->nStatus = (pindex->nStatus & ~BLOCK_FAILED_CHILD) | BLOCK_FAILED_VALID;
+            m_dirty_blockindex.insert(pindex);
+        }
         if (!(pindex->nStatus & BLOCK_FAILED_MASK) && pindex->pprev && (pindex->pprev->nStatus & BLOCK_FAILED_MASK)) {
+            // All descendants of invalid blocks are invalid too.
             pindex->nStatus |= BLOCK_FAILED_VALID;
             m_dirty_blockindex.insert(pindex);
         }
+
         if (pindex->pprev) {
             pindex->BuildSkip();
         }