diff --git a/grep-2.5.1-egf-speedup.patch b/grep-2.5.1-egf-speedup.patch
index 0728bfd..91ed22d 100644
--- a/grep-2.5.1-egf-speedup.patch
+++ b/grep-2.5.1-egf-speedup.patch
@@ -164,8 +164,8 @@
 +		  bytes_left = offset;
 +		  while (bytes_left)
 +		    {
-+		      size_t len = mbrlen (beg, bytes_left, &mbs);
-+		      if (len == (size_t) -1 || len == 0)
++		      size_t mlen = mbrlen (beg, bytes_left, &mbs);
++		      if (mlen == (size_t) -1 || mlen == 0)
 +			{
 +			  /* Incomplete character: treat as single-byte. */
 +			  memset (&mbs, '\0', sizeof (mbstate_t));
@@ -174,13 +174,13 @@
 +			  continue;
 +			}
 +
-+		      if (len == (size_t) -2)
++		      if (mlen == (size_t) -2)
 +			/* Offset points inside multibyte character:
 +			 * no good. */
 +			break;
 +
-+		      beg += len;
-+		      bytes_left -= len;
++		      beg += mlen;
++		      bytes_left -= mlen;
 +		    }
 +		}
 +	      else
@@ -224,8 +224,8 @@
 +		  bytes_left = offset;
 +		  while (bytes_left)
 +		    {
-+		      size_t len = mbrlen (beg, bytes_left, &mbs);
-+		      if (len == (size_t) -1 || len == 0)
++		      size_t mlen = mbrlen (beg, bytes_left, &mbs);
++		      if (mlen == (size_t) -1 || mlen == 0)
 +			{
 +			  /* Incomplete character: treat as single-byte. */
 +			  memset (&mbs, '\0', sizeof (mbstate_t));
@@ -234,13 +234,13 @@
 +			  continue;
 +			}
 +
-+		      if (len == (size_t) -2)
++		      if (mlen == (size_t) -2)
 +			/* Offset points inside multibyte character:
 +			 * no good. */
 +			break;
 +
-+		      beg += len;
-+		      bytes_left -= len;
++		      beg += mlen;
++		      bytes_left -= mlen;
 +		    }
 +		}
 +	      else
@@ -781,16 +781,16 @@
 +      end = beg + len;
 +      while (end < buf + size)
 +	{
-+	  size_t len = mbrlen (end, buf + size - end, &mbs);
-+	  if (len == (size_t) -1 || len == (size_t) -2 || len == 0)
++	  size_t mlen = mbrlen (end, buf + size - end, &mbs);
++	  if (mlen == (size_t) -1 || mlen == (size_t) -2 || mlen == 0)
 +	    {
 +	      memset (&mbs, '\0', sizeof (mbstate_t));
-+	      len = 1;
++	      mlen = 1;
 +	    }
-+	  if (len == 1 && *end == eol)
++	  if (mlen == 1 && *end == eol)
 +	    break;
 +
-+	  end += len;
++	  end += mlen;
 +	}
      }
 +  else
diff --git a/grep.spec b/grep.spec
index a83e96b..b33230d 100644
--- a/grep.spec
+++ b/grep.spec
@@ -91,6 +91,7 @@ fi
 
 %changelog
 * Fri Jan  7 2005 Tim Waugh <twaugh@redhat.com>
+- Fixed variable shadowing in egf-speedup patch.
 - Removed redundant (and incorrect) code in prline.
 
 * Fri Jan  7 2005 Tim Waugh <twaugh@redhat.com> 2.5.1-46