diff --git a/psycopg/libpq_support.c b/psycopg/libpq_support.c
index d259eca5..712102ee 100644
--- a/psycopg/libpq_support.c
+++ b/psycopg/libpq_support.c
@@ -38,6 +38,7 @@
 #include "psycopg/win32_support.h"
 #else
 #include <arpa/inet.h>
+#include <sys/time.h>
 #endif
 
 /* support routines taken from pg_basebackup/streamutil.c */
diff --git a/psycopg/replication_cursor_type.c b/psycopg/replication_cursor_type.c
index ab3ad3c4..76f75630 100644
--- a/psycopg/replication_cursor_type.c
+++ b/psycopg/replication_cursor_type.c
@@ -34,6 +34,9 @@
 
 #include <string.h>
 #include <stdlib.h>
+#ifndef _WIN32
+#include <sys/time.h>
+#endif
 
 /* python */
 #include "datetime.h"