diff --git a/include/jemalloc/internal/private_symbols.txt b/include/jemalloc/internal/private_symbols.txt
index 1988c6ed..ee973c9f 100644
--- a/include/jemalloc/internal/private_symbols.txt
+++ b/include/jemalloc/internal/private_symbols.txt
@@ -338,9 +338,8 @@ prof_thread_name_get
 prof_thread_name_set
 quarantine
 quarantine_alloc_hook
-quarantine_cleanup
 quarantine_alloc_hook_work
-quarantine_init
+quarantine_cleanup
 register_zone
 rtree_delete
 rtree_get
diff --git a/include/jemalloc/internal/quarantine.h b/include/jemalloc/internal/quarantine.h
index a399faaa..ae607399 100644
--- a/include/jemalloc/internal/quarantine.h
+++ b/include/jemalloc/internal/quarantine.h
@@ -29,7 +29,6 @@ struct quarantine_s {
 /******************************************************************************/
 #ifdef JEMALLOC_H_EXTERNS
 
-quarantine_t	*quarantine_init(tsd_t *tsd, size_t lg_maxobjs);
 void	quarantine_alloc_hook_work(tsd_t *tsd);
 void	quarantine(tsd_t *tsd, void *ptr);
 void	quarantine_cleanup(tsd_t *tsd);
diff --git a/src/quarantine.c b/src/quarantine.c
index aa1c3b04..ddacc6ee 100644
--- a/src/quarantine.c
+++ b/src/quarantine.c
@@ -19,7 +19,7 @@ static void	quarantine_drain(tsd_t *tsd, quarantine_t *quarantine,
 
 /******************************************************************************/
 
-quarantine_t *
+static quarantine_t *
 quarantine_init(tsd_t *tsd, size_t lg_maxobjs)
 {
 	quarantine_t *quarantine;