diff --git a/.iex.exs b/.iex.exs
index 4d7132b..794eabd 100644
--- a/.iex.exs
+++ b/.iex.exs
@@ -1,4 +1,5 @@
 import RDF.Sigils
+import RDF.Literal.Guards
 
 alias RDF.NS.{XSD, RDFS, OWL, SKOS}