diff --git a/lib/make/fonts.js b/lib/make/fonts.js
index 9437288..649db64 100644
--- a/lib/make/fonts.js
+++ b/lib/make/fonts.js
@@ -29,9 +29,9 @@ make.font = {
       /* <relative-size> values */
       ["larger", "smaller"],
       /* <length> values */
-      make.number.unsignedNumber() + make.units.units(),
+      make.number.unsignedNumber() + make.unit.unit(),
       /* <percentage> values */
-      make.units.percent(),
+      make.unit.percent(),
     ]);
   },
   genericFamily: function () {
diff --git a/lib/make/units.js b/lib/make/units.js
index 9f79b77..8ca168f 100644
--- a/lib/make/units.js
+++ b/lib/make/units.js
@@ -3,13 +3,13 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 make.unit = {
-  units: function () {
+  unit: function () {
     return random.pick([
       "px", "em", "ex", "ch", "rem", "mm", "cm", "in", "pt", "pc", "%"
     ]);
   },
   length: function () {
-    return make.number.any() + make.unit.units();
+    return make.number.any() + make.unit.unit();
   },
   percent: function () {
     return make.number.any() + "%";