diff --git a/parallel_hashmap/phmap.h b/parallel_hashmap/phmap.h
index 63f5f13..4a154b0 100644
--- a/parallel_hashmap/phmap.h
+++ b/parallel_hashmap/phmap.h
@@ -3784,7 +3784,7 @@ template <>
 struct HashEq<std::string_view> : StringHashEqT<char> {};
 
 template <>
-struct HashEq<std::basic_string_view> : StringHashEqT<char> {};
+struct HashEq<std::basic_string_view<char>> : StringHashEqT<char> {};
 
 // char16_t
 template <>