diff --git a/libraries/liblmdb/mdb.c b/libraries/liblmdb/mdb.c
index 353ff4a..317ba5e 100644
--- a/libraries/liblmdb/mdb.c
+++ b/libraries/liblmdb/mdb.c
@@ -8419,6 +8419,7 @@ mdb_page_split(MDB_cursor *mc, MDB_val *newkey, MDB_val *newdata, pgno_t newpgno
 				rp->mp_upper -= ksize - sizeof(indx_t);
 				mc->mc_ki[mc->mc_top] = x;
 				mc->mc_pg[mc->mc_top] = rp;
+				mc->mc_ki[ptop]++;
 			}
 		} else {
 			int psize, nsize, k;