diff --git a/src/core/include/openvino/core/type/element_type.hpp b/src/core/include/openvino/core/type/element_type.hpp
index f9d670328397c5..7e0acbf162ea5c 100644
--- a/src/core/include/openvino/core/type/element_type.hpp
+++ b/src/core/include/openvino/core/type/element_type.hpp
@@ -74,7 +74,7 @@ class OPENVINO_API Type {
     constexpr Type(const Type&) = default;
     constexpr Type(const Type_t t) : m_type{t} {}
     explicit Type(const std::string& type);
-    Type& operator=(const Type&) = default;
+    constexpr Type& operator=(const Type&) = default;
     std::string c_type_string() const;
     size_t size() const;
     size_t hash() const;