diff --git a/test/dpms.js b/test/dpms.js
index d184011..7226bf8 100644
--- a/test/dpms.js
+++ b/test/dpms.js
@@ -13,12 +13,9 @@ describe('DPMS extension', function() {
                 display = dpy;
                 X = display.client;
                 X.require('dpms', function(err, ext) {
-                    if (err) {
-                        done(ext);
-                    } else {
-                        dpms = ext;
-                        done();
-                    }
+                    should.not.exist(err);
+                    dpms = ext;
+                    done();
                 });
             } else {
                 done(err);
diff --git a/test/xtest.js b/test/xtest.js
index a977b8f..e682a58 100644
--- a/test/xtest.js
+++ b/test/xtest.js
@@ -13,12 +13,9 @@ describe('XTEST extension', function() {
                 display = dpy;
                 X = display.client;
                 X.require('xtest', function(err, ext) {
-                    if (err) {
-                        done(ext);
-                    } else {
-                        xtest = ext;
-                        done();
-                    }
+                    should.not.exist(err);
+                    xtest = ext;
+                    done();
                 });
             } else {
                 done(err);