1 files changed, 2 insertions, 2 deletions
diff --git a/lib/rake.rb b/lib/rake.rb
index 480068be7a..63412b1531 100755
--- a/lib/rake.rb
+++ b/lib/rake.rb
@@ -1477,9 +1477,9 @@ module Rake
     # name, line number, and the matching line of text.  If no block is given,
     # a standard emac style file:linenumber:line message will be printed to
     # standard out.
-    def egrep(pattern)
+    def egrep(pattern, *opt)
       each do |fn|
-        open(fn) do |inf|
+        open(fn, "rb", *opt) do |inf|
           count = 0
           inf.each do |line|
             count += 1