diff --git a/src/validation.cpp b/src/validation.cpp
index d5e92600d4f..495154ad616 100644
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -3849,9 +3849,9 @@ void Chainstate::ResetBlockFailureFlags(CBlockIndex *pindex) {
 
     int nHeight = pindex->nHeight;
 
-    // Remove the invalidity flag from this block and all its descendants.
+    // Remove the invalidity flag from this block and all its descendants and ancestors.
     for (auto& [_, block_index] : m_blockman.m_block_index) {
-        if (!block_index.IsValid() && block_index.GetAncestor(nHeight) == pindex) {
+        if (!block_index.IsValid() && (block_index.GetAncestor(nHeight) == pindex || pindex->GetAncestor(block_index.nHeight) == &block_index)) {
             block_index.nStatus &= ~BLOCK_FAILED_MASK;
             m_blockman.m_dirty_blockindex.insert(&block_index);
             if (block_index.IsValid(BLOCK_VALID_TRANSACTIONS) && block_index.HaveNumChainTxs() && setBlockIndexCandidates.value_comp()(m_chain.Tip(), &block_index)) {
@@ -3863,15 +3863,6 @@ void Chainstate::ResetBlockFailureFlags(CBlockIndex *pindex) {
             }
         }
     }
-
-    // Remove the invalidity flag from all ancestors too.
-    while (pindex != nullptr) {
-        if (pindex->nStatus & BLOCK_FAILED_MASK) {
-            pindex->nStatus &= ~BLOCK_FAILED_MASK;
-            m_blockman.m_dirty_blockindex.insert(pindex);
-        }
-        pindex = pindex->pprev;
-    }
 }
 
 void Chainstate::TryAddBlockIndexCandidate(CBlockIndex* pindex)
diff --git a/src/validation.h b/src/validation.h
index c7e70e3adbc..8ba126b9931 100644
--- a/src/validation.h
+++ b/src/validation.h
@@ -731,7 +731,7 @@ public:
     /** Set invalidity status to all descendants of a block */
     void SetBlockFailureFlags(CBlockIndex* pindex) EXCLUSIVE_LOCKS_REQUIRED(::cs_main);
 
-    /** Remove invalidity status from a block and its descendants. */
+    /** Remove invalidity status from a block, its descendants and ancestors and reconsider them for activation */
     void ResetBlockFailureFlags(CBlockIndex* pindex) EXCLUSIVE_LOCKS_REQUIRED(cs_main);
 
     /** Replay blocks that aren't fully applied to the database. */