diff --git a/devel/caf/files/patch-libcaf__io_src_io_network_default__multiplexer.cpp b/devel/caf/files/patch-libcaf__io_src_io_network_default__multiplexer.cpp
new file mode 100644
index 000000000000..8b78cb6aa4cd
--- /dev/null
+++ b/devel/caf/files/patch-libcaf__io_src_io_network_default__multiplexer.cpp
@@ -0,0 +1,15 @@
+--- libcaf_io/src/io/network/default_multiplexer.cpp.orig	2019-12-27 13:41:05 UTC
++++ libcaf_io/src/io/network/default_multiplexer.cpp
+@@ -63,11 +63,11 @@
+ #  include <cerrno>
+ #  include <fcntl.h>
+ #  include <netdb.h>
++#  include <sys/types.h>
+ #  include <netinet/in.h>
+ #  include <netinet/ip.h>
+ #  include <netinet/tcp.h>
+ #  include <sys/socket.h>
+-#  include <sys/types.h>
+ #  include <unistd.h>
+ #  ifdef CAF_POLL_MULTIPLEXER
+ #    include <poll.h>
diff --git a/devel/caf/files/patch-libcaf__io_src_io_network_ip__endpoint.cpp b/devel/caf/files/patch-libcaf__io_src_io_network_ip__endpoint.cpp
new file mode 100644
index 000000000000..172937516fa7
--- /dev/null
+++ b/devel/caf/files/patch-libcaf__io_src_io_network_ip__endpoint.cpp
@@ -0,0 +1,10 @@
+--- libcaf_io/src/io/network/ip_endpoint.cpp.orig	2019-12-27 13:50:38 UTC
++++ libcaf_io/src/io/network/ip_endpoint.cpp
+@@ -30,6 +30,7 @@
+ #  include <ws2tcpip.h>
+ #  include <ws2ipdef.h>
+ #else
++#  include <sys/types.h>
+ #  include <arpa/inet.h>
+ #  include <cerrno>
+ #  include <netinet/in.h>
diff --git a/devel/caf/files/patch-libcaf__io_src_io_network_native__socket.cpp b/devel/caf/files/patch-libcaf__io_src_io_network_native__socket.cpp
new file mode 100644
index 000000000000..c1d35c059415
--- /dev/null
+++ b/devel/caf/files/patch-libcaf__io_src_io_network_native__socket.cpp
@@ -0,0 +1,10 @@
+--- libcaf_io/src/io/network/native_socket.cpp.orig	2019-12-27 13:58:36 UTC
++++ libcaf_io/src/io/network/native_socket.cpp
+@@ -47,6 +47,7 @@
+ #  include <arpa/inet.h>
+ #  include <cerrno>
+ #  include <fcntl.h>
++#  include <sys/types.h>
+ #  include <netinet/in.h>
+ #  include <netinet/ip.h>
+ #  include <netinet/tcp.h>