diff --git a/lib/jekyll.rb b/lib/jekyll.rb
index 07304057..7989dd2e 100644
--- a/lib/jekyll.rb
+++ b/lib/jekyll.rb
@@ -190,7 +190,7 @@ module Jekyll
     end
 
     # Conditional optimizations
-    Jekyll::External.require_if_present("liquid-c")
+    Jekyll::External.require_if_present("liquid/c")
   end
 end