diff --git a/qt/ts/scss/toolbar.scss b/qt/ts/scss/toolbar.scss
index dda7d27a4..ffc79a26f 100644
--- a/qt/ts/scss/toolbar.scss
+++ b/qt/ts/scss/toolbar.scss
@@ -62,6 +62,7 @@ body {
     animation-iteration-count: infinite;
     display: inline-block;
     visibility: visible !important;
+    animation-timing-function: linear;
 }
 
 #sync-spinner {