diff --git a/src/shm_main.c b/src/shm_main.c
index 32356c113..060252c3a 100644
--- a/src/shm_main.c
+++ b/src/shm_main.c
@@ -509,7 +509,7 @@ sr_shmmain_open(sr_shm_t *shm, int *created)
         ATOMIC_STORE_RELAXED(main_shm->new_sr_sid, 1);
         ATOMIC_STORE_RELAXED(main_shm->new_sub_id, 1);
         ATOMIC_STORE_RELAXED(main_shm->new_evpipe_num, 1);
-        strncpy(main_shm->repo_path, sr_get_repo_path(), sizeof main_shm->repo_path);
+        strncpy(main_shm->repo_path, sr_get_repo_path(), sizeof main_shm->repo_path - 1);
 
         /* remove leftover event pipes */
         sr_remove_evpipes();