diff --git a/src/rtpproxy.h b/src/rtpproxy.h
index 0c73a4f..6a69a4a 100644
--- a/src/rtpproxy.h
+++ b/src/rtpproxy.h
@@ -20,6 +20,10 @@
 
 /* $Id$ */
 
+#if defined(HAVE_SYS_TIME_H)
+# include <sys/time.h>
+#endif
+
 #define CALLIDNUM_SIZE	256
 #define CALLIDHOST_SIZE	128