diff --git a/frontend/src/components/Contributions/ContributionForm.vue b/frontend/src/components/Contributions/ContributionForm.vue
index 1964da537..8c747cccc 100644
--- a/frontend/src/components/Contributions/ContributionForm.vue
+++ b/frontend/src/components/Contributions/ContributionForm.vue
@@ -111,7 +111,7 @@ export default {
       this.form.id = null
       this.form.date = ''
       this.form.memo = ''
-      this.form.hours = 0.0
+      this.form.hours = null
       this.form.amount = ''
     },
   },
diff --git a/frontend/src/components/Inputs/InputHour.vue b/frontend/src/components/Inputs/InputHour.vue
index 10fc00363..9b1f8b996 100644
--- a/frontend/src/components/Inputs/InputHour.vue
+++ b/frontend/src/components/Inputs/InputHour.vue
@@ -32,15 +32,15 @@ export default {
       type: Object,
       default: () => {},
     },
-    name: { type: String, required: true, default: 'Time' },
-    label: { type: String, required: true, default: 'Time' },
-    placeholder: { type: String, required: true, default: 'Time' },
-    value: { type: Number, required: true, default: 0 },
-    validMaxTime: { type: Number, required: true, default: 0 },
+    name: { type: String, required: true },
+    label: { type: String, required: true },
+    placeholder: { type: String, required: true },
+    value: { type: Number, required: true },
+    validMaxTime: { type: Number, required: true },
   },
   data() {
     return {
-      currentValue: 0,
+      currentValue: null,
     }
   },
   computed: {