diff --git a/benchmark/bm_fib.rb b/benchmark/bm_fib.rb
index 4b395f9cc..cb43b4a79 100644
--- a/benchmark/bm_fib.rb
+++ b/benchmark/bm_fib.rb
@@ -1,4 +1,3 @@
-
 def fib n
   return n if n < 2
   fib(n-2) + fib(n-1)
diff --git a/build_config/cross-mingw-winetest.rb b/build_config/cross-mingw-winetest.rb
index c671b70b6..94fa67d17 100644
--- a/build_config/cross-mingw-winetest.rb
+++ b/build_config/cross-mingw-winetest.rb
@@ -1,4 +1,3 @@
-
 # Cross-compile using MinGW and test using Wine.
 #
 # Steps:
diff --git a/mrbgems/mruby-toplevel-ext/mrblib/toplevel.rb b/mrbgems/mruby-toplevel-ext/mrblib/toplevel.rb
index 664008d1c..52d1809f7 100644
--- a/mrbgems/mruby-toplevel-ext/mrblib/toplevel.rb
+++ b/mrbgems/mruby-toplevel-ext/mrblib/toplevel.rb
@@ -1,4 +1,3 @@
-
 def self.include(*modules)
   self.class.include(*modules)
 end
diff --git a/test/t/comparable.rb b/test/t/comparable.rb
index 2ee28de7b..08d1f308c 100644
--- a/test/t/comparable.rb
+++ b/test/t/comparable.rb
@@ -1,4 +1,3 @@
-
 assert('Comparable#<', '15.3.3.2.1') do
   class Foo
     include Comparable