diff --git a/extensions/github/markdown.css b/extensions/github/markdown.css
index 84441f42b16..7cfc8ba75a5 100644
--- a/extensions/github/markdown.css
+++ b/extensions/github/markdown.css
@@ -5,7 +5,7 @@
 
 .vscode-dark img[src$=\#gh-light-mode-only],
 .vscode-light img[src$=\#gh-dark-mode-only],
-.vscode-high-contrast img[src$=\#gh-light-mode-only],
+.vscode-high-contrast:not(.vscode-high-contrast-light) img[src$=\#gh-light-mode-only],
 .vscode-high-contrast-light img[src$=\#gh-dark-mode-only] {
 	display: none;
 }