diff --git a/package/tcl/0001-dont-build-compat.patch b/package/tcl/0001-Disable-tcl-compatibility-layers.patch
similarity index 61%
rename from package/tcl/0001-dont-build-compat.patch
rename to package/tcl/0001-Disable-tcl-compatibility-layers.patch
index 7a7d959cd2..b7b776ad5d 100644
--- a/package/tcl/0001-dont-build-compat.patch
+++ b/package/tcl/0001-Disable-tcl-compatibility-layers.patch
@@ -1,4 +1,6 @@
+From c829552921f0c7c8e522f911135ee100742b441b Mon Sep 17 00:00:00 2001
 From: Andrew Ruder <andrew.ruder@elecsyscorp.com>
+Date: Tue, 8 Apr 2014 15:54:04 -0500
 Subject: [PATCH] Disable tcl compatibility layers
 
 Turn off building compatibility layers for old/broken versions of
@@ -9,17 +11,25 @@ to not have broken behavior.
 Signed-off-by: Andrew Ruder <andrew.ruder@elecsyscorp.com>
 [Fabrice: Update for 8.6.12]
 Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+[Julien: Update for 8.6.13]
+Signed-off-by: Julien Olivain <ju.o@free.fr>
 ---
+ unix/tcl.m4 | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
 
 diff --git a/unix/tcl.m4 b/unix/tcl.m4
+index ca94abd4ad..42eb58d384 100644
 --- a/unix/tcl.m4
 +++ b/unix/tcl.m4
-@@ -2725,7 +2725,7 @@ AC_DEFUN([SC_TCL_CHECK_BROKEN_FUNC],[
+@@ -2646,7 +2646,7 @@ AC_DEFUN([SC_TCL_CHECK_BROKEN_FUNC],[
  #include <stdlib.h>
  #include <string.h>
  int main() {]$2[}]]])],[tcl_cv_$1_unbroken=ok],
 -		[tcl_cv_$1_unbroken=broken],[tcl_cv_$1_unbroken=unknown]))
-+		[tcl_cv_$1_unbroken=broken],[tcl_cv_$1_unbroken=unknown]))
-	if test ["$tcl_cv_]$1[_unbroken"] = "ok"; then
++		[tcl_cv_$1_unbroken=broken],[tcl_cv_$1_unbroken=ok]))
+ 	if test ["$tcl_cv_]$1[_unbroken"] = "ok"; then
  	    tcl_ok=1
  	else
+-- 
+2.41.0
+