diff --git a/tests/test_connect_delay.cpp b/tests/test_connect_delay.cpp
index 064d9d70..101cdcdf 100644
--- a/tests/test_connect_delay.cpp
+++ b/tests/test_connect_delay.cpp
@@ -22,6 +22,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
+#include <time.h>
 #include <string>
 
 #undef NDEBUG