diff --git a/tests/modules/keyspace_events.c b/tests/modules/keyspace_events.c
index c0f79bf37..d394786b3 100644
--- a/tests/modules/keyspace_events.c
+++ b/tests/modules/keyspace_events.c
@@ -30,6 +30,7 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
+#define _BSD_SOURCE
 #define _DEFAULT_SOURCE /* For usleep */
 
 #include "redismodule.h"