diff --git a/lib/exceptions/built_in_exceptions.js b/lib/exceptions/built_in_exceptions.js
index 9644c57..b772fb4 100644
--- a/lib/exceptions/built_in_exceptions.js
+++ b/lib/exceptions/built_in_exceptions.js
@@ -34,6 +34,6 @@ module.exports = {
 
   dispatcherUnknownCommand: new SimpleCommandExceptionType(new LiteralMessage('Unknown command')),
   dispatcherUnknownArgument: new SimpleCommandExceptionType(new LiteralMessage('Incorrect argument for command')),
-  dispatcherExpectedArgumentSeperator: new SimpleCommandExceptionType(new LiteralMessage('Expected whitespace to end one argument, but found trailing data')),
+  dispatcherExpectedArgumentSeparator: new SimpleCommandExceptionType(new LiteralMessage('Expected whitespace to end one argument, but found trailing data')),
   dispatcherParseException: new DynamicCommandExceptionType(message => new LiteralMessage(`Could not parse command: ${message}`))
 }