diff --git a/lib/packages/docutils/rstgen.nim b/lib/packages/docutils/rstgen.nim
index 811ca1c6e4..14614b2edb 100644
--- a/lib/packages/docutils/rstgen.nim
+++ b/lib/packages/docutils/rstgen.nim
@@ -420,9 +420,9 @@ proc generateSymbolIndex(symbols: seq[TIndexEntry]): string =
     let keyword= symbols[i].keyword
     let cleaned_keyword = keyword[1..keyword.high - 1]
     result.addf("<dt><a name=\"$2\" href=\"#$2\"><span>$1:</span></a></dt><ul class=\"simple\"><dd>\n",
-                [symbols[i].keyword, cleaned_keyword])
+                [keyword, cleaned_keyword])
     var j = i
-    while j < symbols.len and symbols[i].keyword == symbols[j].keyword:
+    while j < symbols.len and keyword == symbols[j].keyword:
       let
         url = symbols[j].link
         text = if not symbols[j].linkTitle.isNil: symbols[j].linkTitle else: url