diff --git a/src/vs/workbench/parts/debug/browser/media/debug.contribution.css b/src/vs/workbench/parts/debug/browser/media/debug.contribution.css
index 8df0146cd9e..5f304c48e84 100644
--- a/src/vs/workbench/parts/debug/browser/media/debug.contribution.css
+++ b/src/vs/workbench/parts/debug/browser/media/debug.contribution.css
@@ -21,7 +21,7 @@
 	background: rgba(255, 255, 0, 0.7);
 }
 
-.monaco-editor .debug-focussed-stack-frame-line {
+.monaco-editor .debug-focused-stack-frame-line {
 	background: rgba(206, 231, 206, 0.45);
 }
 
@@ -247,7 +247,7 @@
 	color: #C586C0;
 }
 
-.monaco-editor.vs-dark .debug-focussed-stack-frame-line {
+.monaco-editor.vs-dark .debug-focused-stack-frame-line {
 	background: rgba(122, 189, 122, 0.3);
 }