diff --git a/doc/node.1 b/doc/node.1
index 9defd48c88..ee12593056 100644
--- a/doc/node.1
+++ b/doc/node.1
@@ -36,7 +36,7 @@ Execute without arguments to start the REPL.
 .SH DESCRIPTION
 
 Node is a set of libraries for javascript which allows
-it to be used outside of the browser. It is primarally
+it to be used outside of the browser. It is primarily
 focused on creating simple, easy to build network clients
 and servers.
 
diff --git a/lib/buffer.js b/lib/buffer.js
index ade5d5ac56..2733947348 100644
--- a/lib/buffer.js
+++ b/lib/buffer.js
@@ -122,7 +122,7 @@ function Buffer(subject, encoding, offset) {
         break;
 
       default:
-        throw new Error('First argument need to be an number,' +
+        throw new Error('First argument needs to be a number, ' +
                         'array or string.');
     }