1 files changed, 1 insertions, 1 deletions
diff --git a/src/librustdoc/html/toc.rs b/src/librustdoc/html/toc.rs
index aca6e5bb10e..9143baf9ed9 100644
--- a/src/librustdoc/html/toc.rs
+++ b/src/librustdoc/html/toc.rs
@@ -154,7 +154,7 @@ impl TocBuilder {
             // fill in any missing zeros, e.g. for
             // # Foo (1)
             // ### Bar (1.0.1)
-            for _ in range(toc_level, level - 1) {
+            for _ in toc_level..level - 1 {
                 sec_number.push_str("0.");
             }
             let number = toc.count_entries_with_level(level);