diff --git a/templates/tutorial/poliqarp-plus.html.ep b/templates/tutorial/poliqarp-plus.html.ep
index 13c412f..22478dc 100644
--- a/templates/tutorial/poliqarp-plus.html.ep
+++ b/templates/tutorial/poliqarp-plus.html.ep
@@ -140,7 +140,7 @@
 <p>The ampersand combines multiple properties with a logical AND.
 Terms of the complex segment can be negated as introduced before.</p>
 
-%= korap_tut_query poliqarp => '[orth=laufe/i & base!=lauf]'
+%= korap_tut_query poliqarp => '[orth=laufe/i & base!=Lauf]'
 
 <p>The following query is therefore equivalent:</p>