diff --git a/resources/prefixes.js b/resources/prefixes.js
index d6ad13d..6f1ffed 100644
--- a/resources/prefixes.js
+++ b/resources/prefixes.js
@@ -90,7 +90,7 @@ module.exports = [
 	{ prefix: "hoovers", 
 	uri: "http://wwww.hoovers.com/", },
 	{ prefix: "hrev", 
-	uri: "http:/www.purl.org/stuff/hrev#", },
+	uri: "http://www.purl.org/stuff/hrev#", },
 	{ prefix: "ical", 
 	uri: "http://www.w3.org/2002/12/cal/ical#", },
 	{ prefix: "ir", 
@@ -190,7 +190,7 @@ module.exports = [
 	{ prefix: "rev", 
 	uri: "http://purl.org/stuff/rev#", },
 	{ prefix: "review", 
-	uri: "http:/www.purl.org/stuff/rev#", },
+	uri: "http://www.purl.org/stuff/rev#", },
 	{ prefix: "rss", 
 	uri: "http://purl.org/rss/1.0/", },
 	{ prefix: "sc",