1 files changed, 3 insertions, 0 deletions
diff --git a/src_js/common.js b/src_js/common.js
index 6e164f9..bf1327a 100644
--- a/src_js/common.js
+++ b/src_js/common.js
@@ -17,6 +17,7 @@ let itemCounter = 0;
 
 
 export async function calculate() {
+    r.set('calculating', true);
     try {
         const method = r.get('form', 'method');
         const params = createCalculateParams();
@@ -35,6 +36,8 @@ export async function calculate() {
         showNotification('success', 'New calculation available');
     } catch (e) {
         showNotification('error', e);
+    } finally {
+        r.set('calculating', false);
     }
 }