diff --git a/src/librustdoc/html/static/rustdoc.css b/src/librustdoc/html/static/rustdoc.css
index aa4fd4eb4d203..df4ced794fd8c 100644
--- a/src/librustdoc/html/static/rustdoc.css
+++ b/src/librustdoc/html/static/rustdoc.css
@@ -305,7 +305,7 @@ nav.sub {
 	width: 100%;
 }
 
-body:not(.source) .example-wrap > pre {
+.rustdoc:not(.source) .example-wrap > pre {
 	margin: 0;
 }