diff --git a/package/socat/0002-ptrdiff_t-is-defined-in-stddef.h.patch b/package/socat/0002-ptrdiff_t-is-defined-in-stddef.h.patch
new file mode 100644
index 0000000000..acae641b34
--- /dev/null
+++ b/package/socat/0002-ptrdiff_t-is-defined-in-stddef.h.patch
@@ -0,0 +1,28 @@
+From 99c55f2694fe8621ca2344eb002610dac7f9c969 Mon Sep 17 00:00:00 2001
+From: Gustavo Zacarias <gustavo@zacarias.com.ar>
+Date: Tue, 2 Feb 2016 09:34:24 -0300
+Subject: [PATCH] ptrdiff_t is defined in stddef.h
+
+Status: sent upstream via email.
+
+Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
+---
+ nestlex.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/nestlex.c b/nestlex.c
+index f7950f0..f49482d 100644
+--- a/nestlex.c
++++ b/nestlex.c
+@@ -4,6 +4,8 @@
+ 
+ /* a function for lexical scanning of nested character patterns */
+ 
++#include <stddef.h>	/* ptrdiff_t */
++
+ #include "config.h"
+ #include "mytypes.h"
+ 
+-- 
+2.4.10
+
diff --git a/package/socat/socat.hash b/package/socat/socat.hash
index a876ae2235..d867d8ac10 100644
--- a/package/socat/socat.hash
+++ b/package/socat/socat.hash
@@ -1,2 +1,4 @@
 # From http://www.dest-unreach.org/socat/download.md5sum
-md5	ff56576703dfdeac221357a348c30760	socat-2.0.0-b8.tar.bz2
+md5	553b1593d0a192cb09cbdc687ef1baac	socat-2.0.0-b9.tar.bz2
+# Calculated based on the hash above
+sha256	49efb0a5c66b94b279014addc2851faf8ebbd1ec4b7e31c1de7e912d7b4983d2	socat-2.0.0-b9.tar.bz2
diff --git a/package/socat/socat.mk b/package/socat/socat.mk
index eaf13bcd28..754b210b6c 100644
--- a/package/socat/socat.mk
+++ b/package/socat/socat.mk
@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-SOCAT_VERSION = 2.0.0-b8
+SOCAT_VERSION = 2.0.0-b9
 SOCAT_SOURCE = socat-$(SOCAT_VERSION).tar.bz2
 SOCAT_SITE = http://www.dest-unreach.org/socat/download
 SOCAT_LICENSE = GPLv2