diff --git a/lib/voicemeeter/cbindings.rb b/lib/voicemeeter/cbindings.rb
index f1c3932..a7cb2fd 100644
--- a/lib/voicemeeter/cbindings.rb
+++ b/lib/voicemeeter/cbindings.rb
@@ -1,6 +1,6 @@
 require_relative "install"
 require_relative "errors"
-require_relative "core_extensions/string/snakecase"
+require_relative "util"
 
 module Voicemeeter
   module CBindings
@@ -16,7 +16,7 @@ module Voicemeeter
     ffi_convention :stdcall
 
     private_class_method def self.attach_function(c_name, args, returns)
-      ruby_name = "bind_#{c_name.to_s.delete_prefix("VBVMR_").snakecase}".to_sym
+      ruby_name = "bind_#{Util.snakecase(c_name.to_s.delete_prefix("VBVMR_"))}".to_sym
       super(ruby_name, c_name, args, returns)
     end
 
diff --git a/lib/voicemeeter/core_extensions/string/camelcase.rb b/lib/voicemeeter/core_extensions/string/camelcase.rb
deleted file mode 100644
index 44004a3..0000000
--- a/lib/voicemeeter/core_extensions/string/camelcase.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-module Voicemeeter
-  module Ext
-    module String
-      module CamelCase
-        class ::String
-          def camelcase
-            self if self !~ /_/ && self =~ /[A-Z]+.*/
-            split("_").map { |e| e.capitalize }.join
-          end
-        end
-      end
-    end
-  end
-end
diff --git a/lib/voicemeeter/core_extensions/string/snakecase.rb b/lib/voicemeeter/core_extensions/string/snakecase.rb
deleted file mode 100644
index d55637e..0000000
--- a/lib/voicemeeter/core_extensions/string/snakecase.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-module Voicemeeter
-  module Ext
-    module String
-      module SnakeCase
-        class ::String
-          def snakecase
-            gsub(/([A-Z]+)([A-Z][a-z])/, '\1_\2')
-              .gsub(/([a-z\d])([A-Z])/, '\1_\2')
-              .tr("-", "_")
-              .gsub(/\s/, "_")
-              .gsub(/__+/, "_")
-              .downcase
-          end
-        end
-      end
-    end
-  end
-end
diff --git a/lib/voicemeeter/errors.rb b/lib/voicemeeter/errors.rb
index 61ce1d8..dcb09e9 100644
--- a/lib/voicemeeter/errors.rb
+++ b/lib/voicemeeter/errors.rb
@@ -1,4 +1,4 @@
-require_relative "core_extensions/string/camelcase"
+require_relative "util"
 
 module Voicemeeter
   module Errors
@@ -19,7 +19,7 @@ module Voicemeeter
       end
 
       def fn_name
-        "VBVMR_#{@ruby_name.to_s.delete_prefix("bind_").camelcase.sub("macro_button", "macrobutton")}"
+        "VBVMR_#{Util.camelcase(@ruby_name.to_s.delete_prefix("bind_")).sub("macro_button", "macrobutton")}"
       end
     end
   end
diff --git a/lib/voicemeeter/util.rb b/lib/voicemeeter/util.rb
new file mode 100644
index 0000000..10dd97a
--- /dev/null
+++ b/lib/voicemeeter/util.rb
@@ -0,0 +1,19 @@
+module Voicemeeter
+  module Util
+    def snakecase(string)
+      string.gsub(/([A-Z]+)([A-Z][a-z])/, '\1_\2')
+        .gsub(/([a-z\d])([A-Z])/, '\1_\2')
+        .tr("-", "_")
+        .gsub(/\s/, "_")
+        .gsub(/__+/, "_")
+        .downcase
+    end
+
+    def camelcase(string)
+      string if string !~ /_/ && string =~ /[A-Z]+.*/
+      string.split("_").map { |e| e.capitalize }.join
+    end
+
+    module_function :snakecase, :camelcase
+  end
+end