diff --git a/ql/test/query-tests/Security/CWE-601/OpenUrlRedirect/util.go b/ql/test/query-tests/Security/CWE-601/OpenUrlRedirect/util.go
index 86d2563652c..ff98da992c1 100644
--- a/ql/test/query-tests/Security/CWE-601/OpenUrlRedirect/util.go
+++ b/ql/test/query-tests/Security/CWE-601/OpenUrlRedirect/util.go
@@ -5,6 +5,6 @@ const HASH = "#"
 func someUrl() string { return "semmle.com" }
 
 // placeholder
-func isValidRedirect(s string) {
+func isValidRedirect(s string) bool {
 	return true
 }