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-rw-r--r--src/hyperloglog.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/hyperloglog.c b/src/hyperloglog.c
index df79fc970..d4c0a48d4 100644
--- a/src/hyperloglog.c
+++ b/src/hyperloglog.c
@@ -802,7 +802,7 @@ int hllSparseAdd(robj *o, unsigned char *ele, size_t elesize) {
int deltalen = seqlen-oldlen;
if (deltalen > 0 && sdslen(o->ptr)+deltalen > HLL_SPARSE_MAX) goto promote;
- if (deltalen && next) memmove(next+deltalen,next,next-sparse);
+ if (deltalen && next) memmove(next+deltalen,next,end-next);
sdsIncrLen(o->ptr,deltalen);
memcpy(p,seq,seqlen);