diff --git a/src/iperf_api.h b/src/iperf_api.h
index 23642e3..82942fe 100644
--- a/src/iperf_api.h
+++ b/src/iperf_api.h
@@ -27,6 +27,7 @@
 #ifndef        __IPERF_API_H
 #define        __IPERF_API_H
 
+#include <sys/time.h>
 #include <setjmp.h>
 
 struct iperf_test;