diff --git a/books/free-programming-books-langs.md b/books/free-programming-books-langs.md
index b3901c20e..a01356ef5 100644
--- a/books/free-programming-books-langs.md
+++ b/books/free-programming-books-langs.md
@@ -11,7 +11,8 @@ Books on general-purpose programming that don't focus on a specific language are
 * [Ada](#ada)
 * [Agda](#agda)
 * [Alef](#alef)
-* [Android](#android) [APL](#apl)
+* [Android](#android)
+* [APL](#apl)
 * [App Inventor](#app-inventor)
 * [Arduino](#arduino)
 * [ASP.NET](#aspnet)