diff --git a/src/components/timer.vue b/src/components/timer.vue
index da75fd6..c877a1e 100644
--- a/src/components/timer.vue
+++ b/src/components/timer.vue
@@ -171,7 +171,7 @@
 		},
 		mounted() {
 			this.practice_category_id = this.currentWorkingCategory.id
-			if(window.localStorage.getItem('lastTotalSeconds')){
+			if(window.localStorage.getItem('lastTotalSeconds') !== 'NaN'){
 				this.totalSeconds = parseInt(window.localStorage.getItem('lastTotalSeconds'))
 			} else {
 				this.totalSeconds = 0