diff --git a/src/node/miner.cpp b/src/node/miner.cpp
index c24debd1e69..68d71ab785b 100644
--- a/src/node/miner.cpp
+++ b/src/node/miner.cpp
@@ -311,6 +311,7 @@ void BlockAssembler::addPackageTxs(int& nPackagesSelected, int& nDescendantsUpda
     // close to full; this is just a simple heuristic to finish quickly if the
     // mempool has a lot of entries.
     const int64_t MAX_CONSECUTIVE_FAILURES = 1000;
+    constexpr int32_t BLOCK_FULL_ENOUGH_WEIGHT_DELTA = 4000;
     int64_t nConsecutiveFailed = 0;
 
     while (mi != mempool.mapTx.get<ancestor_score>().end() || !mapModifiedTx.empty()) {
@@ -392,7 +393,7 @@ void BlockAssembler::addPackageTxs(int& nPackagesSelected, int& nDescendantsUpda
             ++nConsecutiveFailed;
 
             if (nConsecutiveFailed > MAX_CONSECUTIVE_FAILURES && nBlockWeight >
-                    m_options.nBlockMaxWeight - m_options.block_reserved_weight) {
+                    m_options.nBlockMaxWeight - BLOCK_FULL_ENOUGH_WEIGHT_DELTA) {
                 // Give up if we're close to full and haven't succeeded in a while
                 break;
             }