diff --git a/modules/islandora_scholar_embargo/islandora_scholar_embargo.module b/modules/islandora_scholar_embargo/islandora_scholar_e
index a0d3bc7..36f6937 100644
--- a/modules/islandora_scholar_embargo/islandora_scholar_embargo.module
+++ b/modules/islandora_scholar_embargo/islandora_scholar_embargo.module
@@ -210,8 +210,8 @@ WHERE {
   ?embargoed is:$eu ?date ;
              is:$np ?notify .
   FILTER(
-    ?notify < '$now'^^xsd:dateTime &&
-    ?date > '$pre_expiry'^^xsd:dateTime) .
+    ?notify < '$now'^^<xsd:dateTime> &&
+    ?date > '$pre_expiry'^^<xsd:dateTime>) .
 }
 EOQ;