diff --git a/src/validation.h b/src/validation.h
--- a/src/validation.h
+++ b/src/validation.h
@@ -75,14 +75,11 @@
 static const unsigned int DEFAULT_MEMPOOL_EXPIRY = 336;
 /** The maximum size of a blk?????.dat file (since 0.8) */
 static const unsigned int MAX_BLOCKFILE_SIZE = 0x8000000; // 128 MiB
-
 /** Maximum number of dedicated script-checking threads allowed */
 static const int MAX_SCRIPTCHECK_THREADS = 15;
 /** -par default (number of script-checking threads, 0 = auto) */
 static const int DEFAULT_SCRIPTCHECK_THREADS = 0;
-
 static const int64_t DEFAULT_MAX_TIP_AGE = 24 * 60 * 60;
-
 static const bool DEFAULT_CHECKPOINTS_ENABLED = true;
 static const bool DEFAULT_TXINDEX = false;
 static const char *const DEFAULT_BLOCKFILTERINDEX = "0";
@@ -105,6 +102,27 @@
  * This value should be >> block propagation and validation time
  */
 static const int64_t DEFAULT_MIN_FINALIZATION_DELAY = 2 * 60 * 60;
+/**
+ * Block files containing a block-height within MIN_BLOCKS_TO_KEEP of
+ * ::ChainActive().Tip() will not be pruned.
+ */
+static const unsigned int MIN_BLOCKS_TO_KEEP = 288;
+static const signed int DEFAULT_CHECKBLOCKS = 6;
+static const unsigned int DEFAULT_CHECKLEVEL = 3;
+/**
+ * Require that user allocate at least 550 MiB for block & undo files
+ * (blk???.dat and rev???.dat)
+ * At 1MB per block, 288 blocks = 288MB.
+ * Add 15% for Undo data = 331MB
+ * Add 20% for Orphan block rate = 397MB
+ * We want the low water mark after pruning to be at least 397 MB and since we
+ * prune in full block file chunks, we need the high water mark which triggers
+ * the prune to be one 128MB block file + added 15% undo data = 147MB greater
+ * for a total of 545MB
+ * Setting the target to >= 550 MiB will make it likely we can respect the
+ * target.
+ */
+static const uint64_t MIN_DISK_SPACE_FOR_BLOCK_FILES = 550 * 1024 * 1024;
 
 /** Current sync state passed to tip changed callbacks. */
 enum class SynchronizationState { INIT_REINDEX, INIT_DOWNLOAD, POST_INIT };
@@ -156,29 +174,6 @@
 extern bool fPruneMode;
 /** Number of MiB of block files that we're trying to stay below. */
 extern uint64_t nPruneTarget;
-/**
- * Block files containing a block-height within MIN_BLOCKS_TO_KEEP of
- * ::ChainActive().Tip() will not be pruned.
- */
-static const unsigned int MIN_BLOCKS_TO_KEEP = 288;
-
-static const signed int DEFAULT_CHECKBLOCKS = 6;
-static const unsigned int DEFAULT_CHECKLEVEL = 3;
-
-/**
- * Require that user allocate at least 550 MiB for block & undo files
- * (blk???.dat and rev???.dat)
- * At 1MB per block, 288 blocks = 288MB.
- * Add 15% for Undo data = 331MB
- * Add 20% for Orphan block rate = 397MB
- * We want the low water mark after pruning to be at least 397 MB and since we
- * prune in full block file chunks, we need the high water mark which triggers
- * the prune to be one 128MB block file + added 15% undo data = 147MB greater
- * for a total of 545MB
- * Setting the target to >= 550 MiB will make it likely we can respect the
- * target.
- */
-static const uint64_t MIN_DISK_SPACE_FOR_BLOCK_FILES = 550 * 1024 * 1024;
 
 class BlockValidationOptions {
 private: