diff --git a/frontend/src/metabase/public/components/EmbedFrame/EmbedFrame.module.css b/frontend/src/metabase/public/components/EmbedFrame/EmbedFrame.module.css
index b39ac88eddca3e9a9b2bcec1efb8680b5eccd84e..15e073a30989860aeb02639834a90bf37cb3882c 100644
--- a/frontend/src/metabase/public/components/EmbedFrame/EmbedFrame.module.css
+++ b/frontend/src/metabase/public/components/EmbedFrame/EmbedFrame.module.css
@@ -14,7 +14,7 @@ body {
 
 .ThemeNight.EmbedFrame {
   background-color: var(--color-bg-black);
-  border: 1px solid var(--color-bg-dark);
+  border-color: var(--color-bg-dark);
 }
 
 .ThemeNight .EmbedFrameHeader,