diff --git a/src/librustdoc/html/static/rustdoc.css b/src/librustdoc/html/static/rustdoc.css
index d1336b1e8eb0..01d2cbec1922 100644
--- a/src/librustdoc/html/static/rustdoc.css
+++ b/src/librustdoc/html/static/rustdoc.css
@@ -305,7 +305,7 @@ nav.sub {
 	overflow-x: auto;
 }
 
-body:not(.source) .example-wrap > pre {
+.rustdoc:not(.source) .example-wrap > pre {
 	margin: 0;
 }