diff --git a/hyde/tests/ext/test_less.py b/hyde/tests/ext/test_less.py
index f8cd849..f1cb12e 100644
--- a/hyde/tests/ext/test_less.py
+++ b/hyde/tests/ext/test_less.py
@@ -29,13 +29,10 @@ class TestLess(object):
     def test_can_execute_less(self):
         s = Site(TEST_SITE)
         s.config.plugins = ['hyde.ext.plugins.less.LessCSSPlugin']
-        paths = ['/usr/local/share/npm/bin/lessc', '~/local/bin/lessc',
-                 '/usr/bin/lessc', '~/bin/lessc']
-        less = [path for path in paths if File(path).exists]
-        if not less:
-            assert False, "Cannot find the lessc executable"
-        less = less[0]
-        s.config.less = Expando(dict(app=less))
+        paths = ['/usr/local/share/npm/bin/lessc']
+        for path in paths:
+            if File(path).exists:
+                s.config.less = Expando(dict(app=path))
         source = TEST_SITE.child('content/media/css/site.less')
         target = File(Folder(s.config.deploy_root_path).child('media/css/site.css'))
         gen = Generator(s)
diff --git a/hyde/tests/ext/test_optipng.py b/hyde/tests/ext/test_optipng.py
index 480e1da..8cb54eb 100644
--- a/hyde/tests/ext/test_optipng.py
+++ b/hyde/tests/ext/test_optipng.py
@@ -31,12 +31,7 @@ class TestOptipng(object):
         s = Site(TEST_SITE)
         s.config.mode = "production"
         s.config.plugins = ['hyde.ext.plugins.optipng.OptiPNGPlugin']
-        paths = ['/usr/local/bin/optipng', '/usr/bin/optipng']
-        optipng = [path for path in paths if File(path).exists]
-        if not optipng:
-            assert False, "Cannot find the optipng executable"
-        optipng = optipng[0]
-        s.config.optipng = Expando(dict(app=optipng, args=dict(quiet="")))
+        s.config.optipng = Expando(dict(args=dict(quiet="")))
         source =File(TEST_SITE.child('content/media/images/hyde-lt-b.png'))
         target = File(Folder(s.config.deploy_root_path).child('media/images/hyde-lt-b.png'))
         gen = Generator(s)
diff --git a/hyde/tests/ext/test_stylus.py b/hyde/tests/ext/test_stylus.py
index 039bebf..1f37a1f 100644
--- a/hyde/tests/ext/test_stylus.py
+++ b/hyde/tests/ext/test_stylus.py
@@ -29,14 +29,10 @@ class TestLess(object):
     def test_can_execute_stylus(self):
         s = Site(TEST_SITE)
         s.config.plugins = ['hyde.ext.plugins.stylus.StylusPlugin']
-        paths = ['/usr/local/share/npm/bin/stylus', '~/local/bin/stylus',
-                 '~/bin/stylus']
-        stylus = [path for path in paths if File(path).exists]
-        if not stylus:
-            assert False, "Cannot find the stylus executable"
-
-        stylus = stylus[0]
-        s.config.stylus = Expando(dict(app=stylus))
+        paths = ['/usr/local/share/npm/bin/stylus']
+        for path in paths:
+            if File(path).exists:
+                s.config.stylus = Expando(dict(app=path))
         source = TEST_SITE.child('content/media/css/site.styl')
         target = File(Folder(s.config.deploy_root_path).child('media/css/site.css'))
         gen = Generator(s)
@@ -51,14 +47,10 @@ class TestLess(object):
         s = Site(TEST_SITE)
         s.config.mode = "production"
         s.config.plugins = ['hyde.ext.plugins.stylus.StylusPlugin']
-        paths = ['/usr/local/share/npm/bin/stylus', '~/local/bin/stylus',
-                 '~/bin/stylus']
-        stylus = [path for path in paths if File(path).exists]
-        if not stylus:
-            assert False, "Cannot find the stylus executable"
-
-        stylus = stylus[0]
-        s.config.stylus = Expando(dict(app=stylus))
+        paths = ['/usr/local/share/npm/bin/stylus']
+        for path in paths:
+            if File(path).exists:
+                s.config.stylus = Expando(dict(app=path))
         source = TEST_SITE.child('content/media/css/site.styl')
         target = File(Folder(s.config.deploy_root_path).child('media/css/site.css'))
         gen = Generator(s)
diff --git a/hyde/tests/ext/test_uglify.py b/hyde/tests/ext/test_uglify.py
index 2bd7175..43a593e 100644
--- a/hyde/tests/ext/test_uglify.py
+++ b/hyde/tests/ext/test_uglify.py
@@ -31,14 +31,10 @@ class TestUglify(object):
         s = Site(TEST_SITE)
         s.config.plugins = ['hyde.ext.plugins.uglify.UglifyPlugin']
         s.config.mode = "production"
-        paths = ['/usr/local/share/npm/bin/uglifyjs', '~/local/bin/uglifyjs',
-                 '/usr/bin/uglifyjs', '~/bin/uglifyjs']
-        uglify = [path for path in paths if File(path).exists]
-        if not uglify:
-            assert False, "Cannot find the uglify executable"
-
-        uglify = uglify[0]
-        s.config.uglify = Expando(dict(app=uglify))
+        paths = ['/usr/local/share/npm/bin/uglifyjs']
+        for path in paths:
+            if File(path).exists:
+                s.config.uglify = Expando(dict(app=path))
         source = TEST_SITE.child('content/media/js/jquery.js')
         target = File(Folder(s.config.deploy_root_path).child('media/js/jquery.js'))
         gen = Generator(s)