diff --git a/doc/api/errors.markdown b/doc/api/errors.markdown
index ccadbc4840..d2c09f2e6b 100644
--- a/doc/api/errors.markdown
+++ b/doc/api/errors.markdown
@@ -357,9 +357,10 @@ of argument validation.
 
 <!--type=misc-->
 
-A JavaScript "exception" is a value that is thrown as a result of an invalid operation or
-as the target of a `throw` statement. While it is not required that these values inherit from
-`Error`, all exceptions thrown by Node.js or the JavaScript runtime *will* be instances of Error.
+A JavaScript exception is a value that is thrown as a result of an invalid operation or
+as the target of a `throw` statement. While it is not required that these values are instances of
+`Error` or classes which inherit from `Error`, all exceptions thrown by Node.js or the JavaScript
+runtime *will* be instances of Error.
 
 Some exceptions are *unrecoverable* at the JavaScript layer. These exceptions will always bring
 down the process. These are usually failed `assert()` checks or `abort()` calls in the C++ layer.