diff --git a/src/box/alter.cc b/src/box/alter.cc
index ad9ac3c07e0f344b4ec626bae2361f7f55153f33..d7cc4662348a53dc71f7195c49669b416f0ebf79 100644
--- a/src/box/alter.cc
+++ b/src/box/alter.cc
@@ -624,6 +624,7 @@ alter_space_rollback(struct trigger *trigger, void * /* event */)
 		   &alter->old_space->on_stmt_begin);
 	struct space *new_space = space_cache_replace(alter->old_space);
 	assert(new_space == alter->new_space);
+	(void) new_space;
 	alter_space_delete(alter);
 }
 
diff --git a/src/box/vinyl.c b/src/box/vinyl.c
index 58b41a392101365296e5dd4411fbe8cdb47371a2..c34c534a81396972f3642561360e446d31d96d6d 100644
--- a/src/box/vinyl.c
+++ b/src/box/vinyl.c
@@ -1790,7 +1790,7 @@ static int
 vy_scheduler_f(va_list va)
 {
 	struct vy_scheduler *scheduler = va_arg(va, struct vy_scheduler *);
-	struct vy_env *env = scheduler->env;
+	MAYBE_UNUSED struct vy_env *env = scheduler->env;
 
 	/*
 	 * Yield immediately, until the quota watermark is reached
diff --git a/src/lib/small b/src/lib/small
index ddf4088d7efd5d698db68667c2d064b8db2e1b53..e32601a34a3e47d4c3234e611c34cb7efe202ceb 160000
--- a/src/lib/small
+++ b/src/lib/small
@@ -1 +1 @@
-Subproject commit ddf4088d7efd5d698db68667c2d064b8db2e1b53
+Subproject commit e32601a34a3e47d4c3234e611c34cb7efe202ceb