diff --git a/.travis.yml b/.travis.yml
index 676ac27b5..74f68a5d0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -11,4 +11,4 @@ env:
   - MRUBY_TARGET=travis
 
 script:
-  - rake gensym && rake -m && rake test
+  - rake -m && rake test
diff --git a/appveyor.yml b/appveyor.yml
index 543ae9600..8a34d82bf 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -41,6 +41,4 @@ init:
 build_script:
   - set YACC=.\win_flex_bison\win_bison.exe
   - set MRUBY_TARGET=appveyor
-  - rake gensym
-  - rake -m -j4
-  - rake -E STDOUT.sync=true test
+  - rake -E $stdout.sync=true test