diff --git a/gawk-3.1.7-prec-utf8.patch b/gawk-3.1.7-prec-utf8.patch
new file mode 100644
index 0000000..1e9e52d
--- /dev/null
+++ b/gawk-3.1.7-prec-utf8.patch
@@ -0,0 +1,23 @@
+--- gawk-3.1.7/builtin.c.orig	2010-04-01 15:52:45.000000000 +0200
++++ gawk-3.1.7/builtin.c	2010-04-01 15:57:17.000000000 +0200
+@@ -1218,9 +1218,18 @@ check_pos:
+ 			if (fw == 0 && ! have_prec)
+ 				;
+ 			else if (gawk_mb_cur_max > 1 && (cs1 == 's' || cs1 == 'c')) {
++				int nchars_needed = 0;
++
+ 				assert(cp == arg->stptr || cp == cpbuf);
+-				copy_count = mbc_byte_count(arg->stptr,
+-						cs1 == 's' ? arg->stlen : 1);
++
++				if (cs1 == 'c')
++					nchars_needed = 1;
++				else if (have_prec)
++					nchars_needed = prec;
++				else
++					nchars_needed = arg->stlen;
++
++				copy_count = mbc_byte_count(arg->stptr, nchars_needed);
+ 			}
+ 			bchunk(cp, copy_count);
+ 			while (fw > prec) {
diff --git a/gawk.spec b/gawk.spec
index 46cdd79..f937fd3 100644
--- a/gawk.spec
+++ b/gawk.spec
@@ -1,13 +1,14 @@
 Summary: The GNU version of the awk text processing utility
 Name: gawk
 Version: 3.1.7
-Release: 2%{?dist}
+Release: 3%{?dist}
 License: GPLv3+
 Group: Applications/Text
 URL: http://www.gnu.org/software/gawk/gawk.html
 Source0: http://ftp.gnu.org/gnu/gawk/gawk-%{version}.tar.xz
 # Patch from Arnold, the upstream maintainer:
 Patch0: gawk-posix-mode-argv0.patch
+Patch1: gawk-3.1.7-prec-utf8.patch
 BuildRoot: %(mktemp -ud %{_tmppath}/%{name}-%{version}-%{release}-XXXXXX)
 
 Requires(post): /sbin/install-info
@@ -24,6 +25,7 @@ considered to be a standard Linux tool for processing text.
 %prep
 %setup -q
 %patch0
+%patch1 -p1 -b .prec-utf8
 
 %build
 %configure --bindir=/bin --disable-libsigsegv
@@ -72,6 +74,9 @@ fi
 %{_datadir}/awk
 
 %changelog
+* Thu Apr 01 2010 Jan Zeleny <jzeleny@redhat.com> - 3.1.7-3
+- fix issue with utf8 precision recognition (#513234)
+
 * Thu Oct  8 2009 Stepan Kasal <skasal@redhat.com> - 3.1.7-2
 - in posix mode, make ARGV[0] = argv[0] (#525381)