diff --git a/module/upgrade/config.php b/module/upgrade/config.php
index 1173af3259..5e17c48e95 100644
--- a/module/upgrade/config.php
+++ b/module/upgrade/config.php
@@ -1723,7 +1723,6 @@ $config->delete['21_7_7'][] = 'module/upgrade/css/afterexec.vi.css';
 $config->delete['21_7_7'][] = 'module/upgrade/css/common.css';
 $config->delete['21_7_7'][] = 'module/upgrade/css/common.ui.css';
 $config->delete['21_7_7'][] = 'module/upgrade/css/confirm.ui.css';
-$config->delete['21_7_7'][] = 'module/upgrade/css/execute.ui.css';
 $config->delete['21_7_7'][] = 'module/upgrade/js/common.js';
 $config->delete['21_7_7'][] = 'module/upgrade/js/confirm.ui.js';
 
diff --git a/module/upgrade/css/execute.ui.css b/module/upgrade/css/execute.ui.css
new file mode 100644
index 0000000000..1ef9b6ddb6
--- /dev/null
+++ b/module/upgrade/css/execute.ui.css
@@ -0,0 +1,4 @@
+.icon-spinner-indicator {
+  animation: -spin 1s linear infinite;
+  opacity: .5
+}