diff --git a/library/protocol/uri_template/src/uri_template.e b/library/protocol/uri_template/src/uri_template.e
index 4f74c0de..8f93a009 100644
--- a/library/protocol/uri_template/src/uri_template.e
+++ b/library/protocol/uri_template/src/uri_template.e
@@ -178,7 +178,7 @@ feature -- Builder
 
 feature -- Match
 
-	match (a_uri: STRING): detachable URI_TEMPLATE_MATCH_RESULT
+	match (a_uri: READABLE_STRING_8): detachable URI_TEMPLATE_MATCH_RESULT
 		require
 			is_valid: is_valid
 		local