diff --git a/core/api.rb b/core/api.rb
index 6f53edb8f..c9537626b 100644
--- a/core/api.rb
+++ b/core/api.rb
@@ -171,7 +171,7 @@ module API
                       end
                     end
                 else
-                    print_error "API Path not defined for Class: "+c.to_s+" Method: "+m.to_s
+                    print_error "API Path not defined for Class: #{c.to_s} method:#{method.to_s}"
                 end
                 return data
             end
diff --git a/core/main/server.rb b/core/main/server.rb
index 0ef37817d..8cb9c924a 100644
--- a/core/main/server.rb
+++ b/core/main/server.rb
@@ -24,7 +24,7 @@ module BeEF
       # @note Grabs the version of beef the framework is deployed on
       VERSION = BeEF::Core::Configuration.instance.get('beef.version')
 
-      attr_reader :root_dir, :url, :configuration, :command_urls, :mounts, :semaphore
+      attr_reader :root_dir, :url, :configuration, :command_urls, :mounts
 
       def initialize
         @configuration = BeEF::Core::Configuration.instance
@@ -34,7 +34,7 @@ module BeEF
         @command_urls = {}
         @mounts = {}
         @rack_app
-        @semaphore = Mutex.new
+        # @semaphore = Mutex.new
       end
 
       def to_h
@@ -77,7 +77,7 @@ module BeEF
         @rack_app.remap(@mounts)
       end
 
-      #Prepare the BeEF http server.
+      # Prepares the BeEF http server.
       def prepare
         # Create http handler for the javascript hook file
         self.mount("#{@configuration.get("beef.http.hook_file")}", BeEF::Core::Handlers::HookedBrowsers.new)