diff --git a/lib/index.js b/lib/index.js
index a49e47e..6c549a5 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -138,7 +138,7 @@ function checkOperation(op) {
     if (action.type === 'block') {
       blockUpdate = {
         reason: action.reason,
-        until: (Date.now() + action.duration) / 1000,
+        until: Math.round((Date.now() + action.duration) / 1000),
       };
       Pushy.setBlockUpdate(blockUpdate);
     }