diff --git a/utils/Types.hpp b/utils/Types.hpp
index 2be426083f7f5970438cb78bbf88eb25e7a813dc..90d0e8407fd037aa7a4cd664ab7431f4753c42a7 100644
--- a/utils/Types.hpp
+++ b/utils/Types.hpp
@@ -2,9 +2,9 @@
 #define TYPES_HPP
 
 enum class ZeroType { zero };
-constexpr ZeroType zero=zero;
+constexpr ZeroType zero=ZeroType::zero;
 
 enum class IdentityType { identity };
-constexpr IdentityType identity=identity;
+constexpr IdentityType identity=IdentityType::identity;
 
 #endif // TYPES_HPP