diff --git a/module/zfs/spa_misc.c b/module/zfs/spa_misc.c
index dceafbc27..6f7c060f9 100644
--- a/module/zfs/spa_misc.c
+++ b/module/zfs/spa_misc.c
@@ -251,11 +251,11 @@ spa_mode_t spa_mode_global = SPA_MODE_UNINIT;
 
 #ifdef ZFS_DEBUG
 /*
- * Everything except dprintf, set_error, spa, and indirect_remap is on
- * by default in debug builds.
+ * Everything except dprintf, set_error, indirect_remap, and raidz_reconstruct
+ * is on by default in debug builds.
  */
 int zfs_flags = ~(ZFS_DEBUG_DPRINTF | ZFS_DEBUG_SET_ERROR |
-    ZFS_DEBUG_INDIRECT_REMAP);
+    ZFS_DEBUG_INDIRECT_REMAP | ZFS_DEBUG_RAIDZ_RECONSTRUCT);
 #else
 int zfs_flags = 0;
 #endif
diff --git a/tests/zfs-tests/tests/functional/cli_root/zdb/zdb_tunables.ksh b/tests/zfs-tests/tests/functional/cli_root/zdb/zdb_tunables.ksh
index 46965aa7c..b89790d5d 100755
--- a/tests/zfs-tests/tests/functional/cli_root/zdb/zdb_tunables.ksh
+++ b/tests/zfs-tests/tests/functional/cli_root/zdb/zdb_tunables.ksh
@@ -63,7 +63,7 @@ log_mustnot_expect 'no such tunable: 0' zdb -o show=0
 log_mustnot_expect 'no such tunable: 1' zdb -o info=1
 
 # can set multiple in same command
-log_must eval 'zdb -o zfs_recover=1 -o zfs_flags=512 | xargs | grep -qE "^zfs_recover: 0 -> 1 zfs_flags: 4294965758 -> 512$"'
+log_must eval 'zdb -o zfs_recover=1 -o zfs_flags=512 | xargs | grep -qE "^zfs_recover: 0 -> 1 zfs_flags: 4294932990 -> 512$"'
 
 # can set and show in same command
 log_must eval 'zdb -o zfs_recover=1 -o zfs_recover -o zfs_recover=0 | xargs | grep -qE "^zfs_recover: 0 -> 1 zfs_recover: 1 zfs_recover: 1 -> 0$"'