diff --git a/src/vs/workbench/parts/git/browser/media/git.contribution.css b/src/vs/workbench/parts/git/browser/media/git.contribution.css
index e8c1731508a8e5b14de68b2d76b0f2a4c14de6b1..4e23b10ae502702a1c926f7b080ddfbc9734e37c 100644
--- a/src/vs/workbench/parts/git/browser/media/git.contribution.css
+++ b/src/vs/workbench/parts/git/browser/media/git.contribution.css
@@ -74,6 +74,7 @@
 	border-bottom: 4px solid transparent;
 	width: 4px;
 	height: 0;
+	z-index: 9;
 }
 
 .monaco-shell .git-branch-dropdown-menu .action-label.git-action.checkout.HEAD {