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-rw-r--r--src/lib/shm_rdrbuff.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/lib/shm_rdrbuff.c b/src/lib/shm_rdrbuff.c
index 6e3dbca4..12e29bef 100644
--- a/src/lib/shm_rdrbuff.c
+++ b/src/lib/shm_rdrbuff.c
@@ -652,5 +652,5 @@ void shm_du_buff_truncate(struct shm_du_buff * sdb,
assert(sdb);
assert(len <= sdb->size);
- sdb->du_tail -= sdb->size - len;
+ sdb->du_tail = sdb->du_head + len;
}