diff --git a/test/unittest/schematest.cpp b/test/unittest/schematest.cpp
index 6a95d0c9..407c4eb0 100644
--- a/test/unittest/schematest.cpp
+++ b/test/unittest/schematest.cpp
@@ -837,7 +837,7 @@ TEST(SchemaValidator, AllOf_Nested) {
     INVALIDATE(s, "123", "", "allOf", "");
 }
 
-template <typename Allocator = CrtAllocator>
+template <typename Allocator>
 static char* ReadFile(const char* filename, Allocator& allocator) {
     const char *paths[] = {
         "%s",