diff --git a/lib/libkse/thread/thr_kern.c b/lib/libkse/thread/thr_kern.c
index ae3a2ff0beb..f1b28c0e38c 100644
--- a/lib/libkse/thread/thr_kern.c
+++ b/lib/libkse/thread/thr_kern.c
@@ -1337,6 +1337,7 @@ kseg_gc(struct pthread *curthread)
 
 	if (free_kseg_count <= MAX_CACHED_KSEGS)
 		return; 
+	TAILQ_INIT(&worklist);
 	crit = _kse_critical_enter();
 	KSE_LOCK_ACQUIRE(curthread->kse, &kse_lock);
 	while (free_kseg_count > MAX_CACHED_KSEGS) {
diff --git a/lib/libpthread/thread/thr_kern.c b/lib/libpthread/thread/thr_kern.c
index ae3a2ff0beb..f1b28c0e38c 100644
--- a/lib/libpthread/thread/thr_kern.c
+++ b/lib/libpthread/thread/thr_kern.c
@@ -1337,6 +1337,7 @@ kseg_gc(struct pthread *curthread)
 
 	if (free_kseg_count <= MAX_CACHED_KSEGS)
 		return; 
+	TAILQ_INIT(&worklist);
 	crit = _kse_critical_enter();
 	KSE_LOCK_ACQUIRE(curthread->kse, &kse_lock);
 	while (free_kseg_count > MAX_CACHED_KSEGS) {