diff --git a/src/oauthproxy.js b/src/oauthproxy.js
index 9e3d681c0..bd735f10c 100644
--- a/src/oauthproxy.js
+++ b/src/oauthproxy.js
@@ -126,7 +126,7 @@ function authenticate(req, res, next) {
 
             clientdb.getByAppIdAndType(result.id, clientdb.TYPE_PROXY, function (error, result) {
                 if (error) {
-                    console.error('Unkonwn OAuth client.', error);
+                    console.error('Unknown OAuth client.', error);
                     return res.send(500, 'Unknown OAuth client.');
                 }
 
diff --git a/src/routes/oauth2.js b/src/routes/oauth2.js
index 30226b29a..e1334db68 100644
--- a/src/routes/oauth2.js
+++ b/src/routes/oauth2.js
@@ -375,7 +375,7 @@ var authorization = [
 
         if (type === clientdb.TYPE_ADMIN) return next();
         if (type === clientdb.TYPE_EXTERNAL) return next();
-        if (type === clientdb.TYPE_SIMPLE_AUTH) return sendError(req, res, 'Unkonwn OAuth client.');
+        if (type === clientdb.TYPE_SIMPLE_AUTH) return sendError(req, res, 'Unknown OAuth client.');
 
         appdb.get(req.oauth2.client.appId, function (error, appObject) {
             if (error) return sendErrorPageOrRedirect(req, res, 'Invalid request. Unknown app for this client_id.');
diff --git a/src/routes/test/oauth2-test.js b/src/routes/test/oauth2-test.js
index 178d6b9ec..6adb1cdc9 100644
--- a/src/routes/test/oauth2-test.js
+++ b/src/routes/test/oauth2-test.js
@@ -799,7 +799,7 @@ describe('OAuth2', function () {
                         expect(error).to.not.be.ok();
                         expect(response.statusCode).to.eql(200);
                         expect(body.indexOf('<!-- error tester -->')).to.not.equal(-1);
-                        expect(body.indexOf('Unkonwn OAuth client.')).to.not.equal(-1);
+                        expect(body.indexOf('Unknown OAuth client.')).to.not.equal(-1);
 
                         done();
                     });
@@ -862,7 +862,7 @@ describe('OAuth2', function () {
                         expect(error).to.not.be.ok();
                         expect(response.statusCode).to.eql(200);
                         expect(body.indexOf('<!-- error tester -->')).to.not.equal(-1);
-                        expect(body.indexOf('Unkonwn OAuth client.')).to.not.equal(-1);
+                        expect(body.indexOf('Unknown OAuth client.')).to.not.equal(-1);
 
                         done();
                     });