diff --git a/grep-2.5.1-egf-speedup.patch b/grep-2.5.1-egf-speedup.patch
index a90836d..3680f91 100644
--- a/grep-2.5.1-egf-speedup.patch
+++ b/grep-2.5.1-egf-speedup.patch
@@ -639,7 +639,7 @@
 -	    else
 -	      goto success;
 -	  }
-+		  if (!WCHAR ((unsigned char) beg[-1]))
++		  if (WCHAR ((unsigned char) beg[-1]))
 +		    goto next_char;
 +		}
 +#ifdef MBS_SUPPORT
diff --git a/grep.spec b/grep.spec
index 02896dd..4ab670d 100644
--- a/grep.spec
+++ b/grep.spec
@@ -1,7 +1,7 @@
 Summary: The GNU versions of grep pattern matching utilities.
 Name: grep
 Version: 2.5.1
-Release: 49
+Release: 50
 License: GPL
 Group: Applications/Text
 Source: ftp://ftp.gnu.org/pub/gnu/grep/grep-%{version}a.tar.bz2
@@ -92,6 +92,9 @@ fi
 %{_mandir}/*/*
 
 %changelog
+* Tue Jun 28 2005 Tim Waugh <twaugh@redhat.com> 2.5.1-50
+- Futher fixing for bug #161700.
+
 * Mon Jun 27 2005 Tim Waugh <twaugh@redhat.com> 2.5.1-49
 - Fix 'grep -Fw' for encodings other than UTF-8 (bug #161700).