diff --git a/lib/sendf.c b/lib/sendf.c
index a1cb8e4788..027f97c47a 100644
--- a/lib/sendf.c
+++ b/lib/sendf.c
@@ -22,6 +22,10 @@
 
 #include "curl_setup.h"
 
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+
 #ifdef HAVE_LINUX_TCP_H
 #include <linux/tcp.h>
 #endif
diff --git a/lib/setopt.c b/lib/setopt.c
index 944d173471..bd5fb54d97 100644
--- a/lib/setopt.c
+++ b/lib/setopt.c
@@ -26,6 +26,10 @@
 #include <limits.h>
 #endif
 
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+
 #ifdef HAVE_LINUX_TCP_H
 #include <linux/tcp.h>
 #endif