diff --git a/monkey/monkey_island/cc/ui/src/components/pages/MapPage.js b/monkey/monkey_island/cc/ui/src/components/pages/MapPage.js
index 11a67456f..d3bc5ad2f 100644
--- a/monkey/monkey_island/cc/ui/src/components/pages/MapPage.js
+++ b/monkey/monkey_island/cc/ui/src/components/pages/MapPage.js
@@ -89,7 +89,7 @@ class MapPageComponent extends AuthComponent {
         method: 'POST',
         headers: {'Content-Type': 'application/json'},
         // Python uses floating point seconds, Date.now uses milliseconds, so convert
-        body: JSON.stringify({kill_time: Date.now() / 1000.0})
+        body: JSON.stringify({terminate_time: Date.now() / 1000.0})
       })
       .then(res => res.json())
       .then(() => {this.setState({killPressed: true})});