1 files changed, 2 insertions, 0 deletions

diff --git a/deque.c b/deque.c
index c4b1795..93cbe92 100644
--- a/deque.c
+++ b/deque.c
@@ -327,6 +327,7 @@ deque_show(struct deque *d)
 void
 test_deque(void)
 {
+#ifndef NDEBUG
         struct deque d[1];
 
         deque_init(d);
@@ -425,6 +426,7 @@ test_deque(void)
         deque_free(d);
 
         puts("all tests passed.");
+#endif
 }
 
 int