diff --git a/src/main.cpp b/src/main.cpp
index 3422c56cfc3..e05237da201 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -2525,43 +2525,43 @@ static bool ActivateBestChainStep(CValidationState& state, const CChainParams& c
     bool fContinue = true;
     int nHeight = pindexFork ? pindexFork->nHeight : -1;
     while (fContinue && nHeight != pindexMostWork->nHeight) {
-    // Don't iterate the entire list of potential improvements toward the best tip, as we likely only need
-    // a few blocks along the way.
-    int nTargetHeight = std::min(nHeight + 32, pindexMostWork->nHeight);
-    vpindexToConnect.clear();
-    vpindexToConnect.reserve(nTargetHeight - nHeight);
-    CBlockIndex *pindexIter = pindexMostWork->GetAncestor(nTargetHeight);
-    while (pindexIter && pindexIter->nHeight != nHeight) {
-        vpindexToConnect.push_back(pindexIter);
-        pindexIter = pindexIter->pprev;
-    }
-    nHeight = nTargetHeight;
-
-    // Connect new blocks.
-    BOOST_REVERSE_FOREACH(CBlockIndex *pindexConnect, vpindexToConnect) {
-        if (!ConnectTip(state, chainparams, pindexConnect, pindexConnect == pindexMostWork ? pblock : NULL)) {
-            if (state.IsInvalid()) {
-                // The block violates a consensus rule.
-                if (!state.CorruptionPossible())
-                    InvalidChainFound(vpindexToConnect.back());
-                state = CValidationState();
-                fInvalidFound = true;
-                fContinue = false;
-                break;
+        // Don't iterate the entire list of potential improvements toward the best tip, as we likely only need
+        // a few blocks along the way.
+        int nTargetHeight = std::min(nHeight + 32, pindexMostWork->nHeight);
+        vpindexToConnect.clear();
+        vpindexToConnect.reserve(nTargetHeight - nHeight);
+        CBlockIndex *pindexIter = pindexMostWork->GetAncestor(nTargetHeight);
+        while (pindexIter && pindexIter->nHeight != nHeight) {
+            vpindexToConnect.push_back(pindexIter);
+            pindexIter = pindexIter->pprev;
+        }
+        nHeight = nTargetHeight;
+
+        // Connect new blocks.
+        BOOST_REVERSE_FOREACH(CBlockIndex *pindexConnect, vpindexToConnect) {
+            if (!ConnectTip(state, chainparams, pindexConnect, pindexConnect == pindexMostWork ? pblock : NULL)) {
+                if (state.IsInvalid()) {
+                    // The block violates a consensus rule.
+                    if (!state.CorruptionPossible())
+                        InvalidChainFound(vpindexToConnect.back());
+                    state = CValidationState();
+                    fInvalidFound = true;
+                    fContinue = false;
+                    break;
+                } else {
+                    // A system error occurred (disk space, database error, ...).
+                    return false;
+                }
             } else {
-                // A system error occurred (disk space, database error, ...).
-                return false;
-            }
-        } else {
-            PruneBlockIndexCandidates();
-            if (!pindexOldTip || chainActive.Tip()->nChainWork > pindexOldTip->nChainWork) {
-                // We're in a better position than we were. Return temporarily to release the lock.
-                fContinue = false;
-                break;
+                PruneBlockIndexCandidates();
+                if (!pindexOldTip || chainActive.Tip()->nChainWork > pindexOldTip->nChainWork) {
+                    // We're in a better position than we were. Return temporarily to release the lock.
+                    fContinue = false;
+                    break;
+                }
             }
         }
     }
-    }
 
     if (fBlocksDisconnected)
         mempool.TrimToSize(GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000);