diff --git a/_service:download_url:zsh-4.3.11-doc.tar.bz2 b/_service:download_url:zsh-4.3.11-doc.tar.bz2
deleted file mode 100644
index 9e0652b..0000000
--- a/_service:download_url:zsh-4.3.11-doc.tar.bz2
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:956100a251cf523978a2f81802636b6cdd28f2861d508eedb10477317cecec4c
-size 2687527
diff --git a/_service:download_url:zsh-4.3.11.tar.bz2 b/_service:download_url:zsh-4.3.11.tar.bz2
deleted file mode 100644
index 5e69eac..0000000
--- a/_service:download_url:zsh-4.3.11.tar.bz2
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:30eb774120d89d98336c929c210a9df4f61fc1f0137732812a6c0d8b8d074f05
-size 2868429
diff --git a/subst-crash.patch b/subst-crash.patch
new file mode 100644
index 0000000..7ef899d
--- /dev/null
+++ b/subst-crash.patch
@@ -0,0 +1,36 @@
+From aa58d139ff3ffa7258a6273bf279d70f9ee31916 Mon Sep 17 00:00:00 2001
+From: Peter Stephenson <pws@users.sourceforge.net>
+Date: Tue, 18 Jan 2011 10:29:58 +0000
+Subject: [PATCH] Mikael: 28637: ${foo:0:} caused crash
+
+---
+ ChangeLog              |    6 +++++-
+ Src/subst.c            |   14 ++++++++------
+ Test/D04parameter.ztst |    5 +++++
+ 3 files changed, 18 insertions(+), 7 deletions(-)
+
+diff --git a/Src/subst.c b/Src/subst.c
+index 24d515d..37d63ca 100644
+--- a/Src/subst.c
++++ b/Src/subst.c
+@@ -2814,12 +2814,14 @@ paramsubst(LinkList l, LinkNode n, char **str, int qt, int ssub)
+ 			zerr("invalid length: %s", check_offset);
+ 			return NULL;
+ 		    }
+-		    length = mathevali(check_offset);
+-		    if (errflag)
+-			return NULL;
+-		    if (length < (zlong)0) {
+-			zerr("invalid length: %s", check_offset);
+-			return NULL;
++                    if (check_offset) {
++			length = mathevali(check_offset);
++			if (errflag)
++			    return NULL;
++			if (length < (zlong)0) {
++			    zerr("invalid length: %s", check_offset);
++			    return NULL;
++			}
+ 		    }
+ 		}
+ 		if (horrible_offset_hack) {
diff --git a/zsh.changes b/zsh.changes
index 41ed8ef..46618ed 100644
--- a/zsh.changes
+++ b/zsh.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Tue Mar 15 13:40:24 UTC 2011 - ismail@namtrac.org
+
+- Fix crash with ${foo:0:} 
+
 -------------------------------------------------------------------
 Wed Dec 29 02:07:58 UTC 2010 - cristian.rodriguez@opensuse.org
 
diff --git a/zsh.spec b/zsh.spec
index d8b45c8..af641b3 100644
--- a/zsh.spec
+++ b/zsh.spec
@@ -46,6 +46,7 @@ Patch0:         %{name}-%{version}-doc_makefile.patch
 Patch1:         %{name}-%{version}-doc_intro_paths.patch
 Patch2:         %{name}-%{version}-run-help_pager.patch
 Patch3:         zsh-cleanup.patch
+Patch4:         subst-crash.patch
 Summary:        Shell with comprehensive completion
 %define do_profiling 0
 
@@ -67,6 +68,7 @@ Authors:
 %patch1
 %patch2
 %patch3
+%patch4 -p1
 # Fix bindir path in some files
 perl -p -i -e 's|/usr/local/bin|%{_bindir}|' \
     Functions/Misc/zcalc Functions/Example/cat \