diff --git a/src/librustdoc/html/render/context.rs b/src/librustdoc/html/render/context.rs
index 534a542d58e..0e661228bed 100644
--- a/src/librustdoc/html/render/context.rs
+++ b/src/librustdoc/html/render/context.rs
@@ -665,7 +665,7 @@ fn mod_item_in(&mut self, item: &clean::Item) -> Result<(), Error> {
                 _ => unreachable!(),
             };
             let items = self.build_sidebar_items(module);
-            let js_dst = self.dst.join("sidebar-items.js");
+            let js_dst = self.dst.join(&format!("sidebar-items{}.js", self.shared.resource_suffix));
             let v = format!("initSidebarItems({});", serde_json::to_string(&items).unwrap());
             scx.fs.write(js_dst, v)?;
         }
diff --git a/src/librustdoc/html/render/mod.rs b/src/librustdoc/html/render/mod.rs
index 7adf63f26f6..76840d9fe7c 100644
--- a/src/librustdoc/html/render/mod.rs
+++ b/src/librustdoc/html/render/mod.rs
@@ -1823,7 +1823,11 @@ fn print_sidebar(cx: &Context<'_>, it: &clean::Item, buffer: &mut Buffer) {
         ty = it.type_(),
         path = relpath
     );
-    write!(buffer, "<script defer src=\"{}sidebar-items.js\"></script>", relpath);
+    write!(
+        buffer,
+        "<script defer src=\"{}sidebar-items{}.js\"></script>",
+        relpath, cx.shared.resource_suffix
+    );
     // Closes sidebar-elems div.
     buffer.write_str("</div>");
 }