diff --git a/tests/test-360X_chapters_hex_format.rb b/tests/test-360X_chapters_hex_format.rb
old mode 100644
new mode 100755
index 72b6776f4..abc241d2d
--- a/tests/test-360X_chapters_hex_format.rb
+++ b/tests/test-360X_chapters_hex_format.rb
@@ -5,6 +5,6 @@ describe "mkvextract / extract XML chapters with binary elements (hex format)"
 
 test_merge "data/subtitles/srt/ven.srt --chapters data/text/chapters-hex-format.xml", :keep_tmp => true
 test "extraction" do
-  extract "#{tmp} > #{tmp}-chapters", :mode => :chapters
+  extract tmp, :mode => :chapters, :args => "#{tmp}-chapters"
   hash_file "#{tmp}-chapters"
 end
diff --git a/tests/test-374extract_chapters_with_ebml_void.rb b/tests/test-374extract_chapters_with_ebml_void.rb
old mode 100644
new mode 100755
index 25b417506..2a58536f9
--- a/tests/test-374extract_chapters_with_ebml_void.rb
+++ b/tests/test-374extract_chapters_with_ebml_void.rb
@@ -4,6 +4,6 @@
 describe "mkvextract / extract chapters with EbmlVoid elements"
 
 test 'extraction' do
-  output = extract("data/mkv/chapters-with-ebmlvoid.mkv", :mode => :chapters).join('')
+  output = extract("data/mkv/chapters-with-ebmlvoid.mkv", :mode => :chapters, :args => "-").join('')
   /ebml.?void/i.match(output) ? 'BAD' : 'ok'
 end
diff --git a/tests/test-426extract_write_bom_only_once.rb b/tests/test-426extract_write_bom_only_once.rb
index c04580bb4..d9ce35267 100755
--- a/tests/test-426extract_write_bom_only_once.rb
+++ b/tests/test-426extract_write_bom_only_once.rb
@@ -6,7 +6,7 @@ file = "data/mkv/complex.mkv"
 
 describe "mkvextract / write BOMs only once with --redirect-output"
 test "extraction via shell redirection" do
-  extract(file, :mode => :chapters).
+  extract(file, :mode => :chapters, :args => "-").
     slice(0..-2).
     join('').
     md5
diff --git a/tests/test-531simple_chapter_extraction.rb b/tests/test-531simple_chapter_extraction.rb
index 8b9c6c6d6..8d26769f4 100755
--- a/tests/test-531simple_chapter_extraction.rb
+++ b/tests/test-531simple_chapter_extraction.rb
@@ -6,7 +6,7 @@ describe "mkvextract / chapters in simple format including language selection"
 %w{love phantom}.each do |file|
   [ "", "--simple-language eng", "--simple-language spa" ].each do |language|
     test "extract from #{file} #{language}" do
-      extract "data/chapters/#{file}.mkv --simple #{language} > #{tmp}", :mode => :chapters
+      extract "data/chapters/#{file}.mkv", :args => "--simple #{language} #{tmp}", :mode => :chapters
       hash_tmp
     end
   end
diff --git a/tests/test-551deprecated_cctld_codes.rb b/tests/test-551deprecated_cctld_codes.rb
index 14c89228c..16e12c44a 100755
--- a/tests/test-551deprecated_cctld_codes.rb
+++ b/tests/test-551deprecated_cctld_codes.rb
@@ -7,6 +7,6 @@ test_merge "data/subtitles/srt/ven.srt", :args => "--chapters data/chapters/uk-a
 test_merge "data/mkv/chapters-uk-and-gb.mks"
 
 test "fix during extraction" do
-  extract "data/mkv/chapters-uk-and-gb.mks > #{tmp}", :mode => :chapters
+  extract "data/mkv/chapters-uk-and-gb.mks", :args => tmp, :mode => :chapters
   hash_tmp
 end
diff --git a/tests/test-650chapter_generation_no_names.rb b/tests/test-650chapter_generation_no_names.rb
index eda2aea38..edbdd3261 100755
--- a/tests/test-650chapter_generation_no_names.rb
+++ b/tests/test-650chapter_generation_no_names.rb
@@ -5,7 +5,7 @@ describe "mkvmerge / generate chapters without names"
 
 test_merge "data/simple/v.mp3", args: "--generate-chapters interval:10s --generate-chapters-name-template ''", :keep_tmp => true
 test :chapter_names do
-  extract "#{tmp} > #{tmp}-2", :mode => :chapters
+  extract tmp, :args => "#{tmp}-2", :mode => :chapters
   content = IO.readlines("#{tmp}-2").join("")
   ok      = %r{ChapterAtom}.match(content)  && !%r{Chapter(Display|String|Language)}.match(content)
   fail "chapter content is bad" if !ok
diff --git a/tests/test.d/simple_test.rb b/tests/test.d/simple_test.rb
index 9e2d95c8d..93cbaa94b 100644
--- a/tests/test.d/simple_test.rb
+++ b/tests/test.d/simple_test.rb
@@ -276,7 +276,8 @@ class SimpleTest
     fail ArgumentError if args.empty?
 
     mode     = options[:mode] || :tracks
-    command  = "../src/mkvextract --engage no_variable_data #{mode} #{args.first} " + options.keys.select { |key| key.is_a?(Numeric) }.sort.collect { |key| "#{key}:#{options[key]}" }.join(' ')
+    command  = "../src/mkvextract --engage no_variable_data #{args.first} #{mode} " + options.keys.select { |key| key.is_a?(Numeric) }.sort.collect { |key| "#{key}:#{options[key]}" }.join(' ')
+    command += options[:args] if options.key?(:args)
 
     self.sys command, :exit_code => options[:exit_code], :no_result => options[:no_result]
   end