diff --git a/src/DatetimeYearPicker.vue b/src/DatetimeYearPicker.vue
index 7174bde..43ee1ea 100644
--- a/src/DatetimeYearPicker.vue
+++ b/src/DatetimeYearPicker.vue
@@ -1,10 +1,8 @@
 <template>
   <div class="vdatetime-year-picker">
     <div class="vdatetime-year-picker__list vdatetime-year-picker__list" ref="yearList">
-      <div class="vdatetime-year-picker__item" v-for="year in years" @click="select(year)" :class="{
-        'vdatetime-year-picker__item--selected': year.selected,
-        'vdatetime-year-picker__item--disabled': year.disabled
-      }">{{ year.number }}</div>
+      <div class="vdatetime-year-picker__item" v-for="year in years" @click="select(year)" :class="{'vdatetime-year-picker__item--selected': year.selected, 'vdatetime-year-picker__item--disabled': year.disabled}">{{ year.number }}
+      </div>
     </div>
   </div>
 </template>
@@ -41,7 +39,10 @@ export default {
 
   methods: {
     select (year) {
-      if (year.disabled) return
+      if (year.disabled) {
+        return
+      }
+
       this.$emit('change', parseInt(year.number))
     },
 
diff --git a/src/util.js b/src/util.js
index 3c03978..a129e6f 100644
--- a/src/util.js
+++ b/src/util.js
@@ -41,10 +41,11 @@ export function monthDayIsDisabled (minDate, maxDate, year, month, day) {
 }
 
 export function yearIsDisabled (minDate, maxDate, year) {
-  minDate = minDate ? minDate.year : null
-  maxDate = maxDate ? maxDate.year : null
-  return (minDate && year < minDate) ||
-         (maxDate && year > maxDate)
+  const minYear = minDate ? minDate.year : null
+  const maxYear = maxDate ? maxDate.year : null
+
+  return (minYear && year < minYear) ||
+         (maxYear && year > maxYear)
 }
 
 export function timeComponentIsDisabled (min, max, component) {