diff --git a/libraries/libldap_r/tpool.c b/libraries/libldap_r/tpool.c
index 0a618cbea0..1b18ff8fe0 100644
--- a/libraries/libldap_r/tpool.c
+++ b/libraries/libldap_r/tpool.c
@@ -826,6 +826,7 @@ int ldap_pvt_thread_pool_setkey(
 
 	for ( i=0; i<MAXKEYS; i++ ) {
 		if ( !ctx->ltu_key[i].ltk_key || ctx->ltu_key[i].ltk_key == key ) {
+			ctx->ltu_key[i].ltk_key = key;
 			ctx->ltu_key[i].ltk_data = data;
 			ctx->ltu_key[i].ltk_free = kfree;
 			return 0;