diff --git a/bin/csv-filter b/bin/csv-filter
index c5328171..bfa26e12 100755
--- a/bin/csv-filter
+++ b/bin/csv-filter
@@ -22,6 +22,11 @@ parser.on('--input-col-sep=SEPARATOR',
   options[:input_col_sep] = value
 end
 
+parser.on('--input-row-sep=SEPARATOR',
+          'Input row separator string.') do |value|
+  options[:input_row_sep] = value
+end
+
 begin
   parser.parse!
 rescue OptionParser::InvalidOption
diff --git a/test/csv/test_csv_filter.rb b/test/csv/test_csv_filter.rb
index 01e39071..95b82dbe 100644
--- a/test/csv/test_csv_filter.rb
+++ b/test/csv/test_csv_filter.rb
@@ -77,4 +77,10 @@ def test_option_input_col_sep
     assert_equal(["aaa,bbb,ccc\nddd,eee,fff\n", ""],
                  run_csv_filter(csv, "--input-col-sep=:"))
   end
+
+  def test_option_input_row_sep
+    csv = "aaa,bbb,ccc:ddd,eee,fff:"
+    assert_equal(["aaa,bbb,ccc\nddd,eee,fff\n", ""],
+                 run_csv_filter(csv, "--input-row-sep=:"))
+  end
 end