diff --git a/snippet_include.ly b/snippet_include.ly
index f0be485..2ab3abc 100644
--- a/snippet_include.ly
+++ b/snippet_include.ly
@@ -4,5 +4,5 @@
 
 \include #(if noDefaultOutput "void.ly" "all_base_includes.ly")
 
-#(define AUTHOR_DATA (if (defined? 'AUTHOR_DATA) AUTHOR_DATA (call-with-input-file "../data/authors.json" json->scm)))
-#(define SONG_DATA (if (defined? 'SONG_DATA) SONG_DATA (call-with-input-file "../data/songs.json" json->scm)))
\ No newline at end of file
+#(define AUTHOR_DATA (if (defined? 'AUTHOR_DATA) AUTHOR_DATA (parse-yml-file "../data/authors.yml")))
+#(define SONG_DATA (if (defined? 'SONG_DATA) SONG_DATA (parse-yml-file "../data/songs.yml")))