diff --git a/build.rb b/build.rb
index 19fa2db..ff724fc 100755
--- a/build.rb
+++ b/build.rb
@@ -49,7 +49,7 @@ rescue ParseError => e
   exit(1)
 end
 
-def run_and_warn_on_failure(command, name)
+def run_and_warn_on_failure(command)
   output = `#{command}`
   if $?.exitstatus != 0
     puts
diff --git a/compiler.rb b/compiler.rb
index 02fddda..0315f7f 100644
--- a/compiler.rb
+++ b/compiler.rb
@@ -192,7 +192,7 @@ class Compiler
 
   def bit_expr(op, token)
     match(token)
-    if block_given? yield else term end
+    if block_given? then yield else term end
     asm.pop(EBX)
     asm.send(op, EAX, EBX)
   end