diff --git a/src/components/dropdown/Dropdown.vue b/src/components/dropdown/Dropdown.vue
index 57a4c04b3..3d0ef0308 100644
--- a/src/components/dropdown/Dropdown.vue
+++ b/src/components/dropdown/Dropdown.vue
@@ -422,7 +422,7 @@ export default {
                 return this.value;
         },
         equalityKey() {
-            return this.optionValue ? null : this.dataKey; 
+            return this.optionValue ? null : this.dataKey;
         }
     }
 }
diff --git a/src/components/listbox/Listbox.vue b/src/components/listbox/Listbox.vue
index 16b2da664..37449144e 100644
--- a/src/components/listbox/Listbox.vue
+++ b/src/components/listbox/Listbox.vue
@@ -220,7 +220,7 @@ export default {
                 return this.options;
         },
         equalityKey() {
-            return this.optionValue ? null : this.dataKey; 
+            return this.optionValue ? null : this.dataKey;
         }
     }
 }
diff --git a/src/components/multiselect/MultiSelect.vue b/src/components/multiselect/MultiSelect.vue
index a14e6d953..4997e1698 100644
--- a/src/components/multiselect/MultiSelect.vue
+++ b/src/components/multiselect/MultiSelect.vue
@@ -356,7 +356,7 @@ export default {
             }
         },
         equalityKey() {
-            return this.optionValue ? null : this.dataKey; 
+            return this.optionValue ? null : this.dataKey;
         }
     }
 }
diff --git a/src/components/selectbutton/SelectButton.vue b/src/components/selectbutton/SelectButton.vue
index 1937f0fb3..196ebfcef 100644
--- a/src/components/selectbutton/SelectButton.vue
+++ b/src/components/selectbutton/SelectButton.vue
@@ -96,7 +96,7 @@ export default {
 			return 'p-selectbutton p-buttonset p-component p-buttonset-' + String(this.options ? this.options.length : 0);
         },
         equalityKey() {
-            return this.optionValue ? null : this.dataKey; 
+            return this.optionValue ? null : this.dataKey;
         }
 	}
 }