diff --git a/src/core/include/mp-units/framework/dimension.h b/src/core/include/mp-units/framework/dimension.h
index d4a17ba2a..b0ff804f6 100644
--- a/src/core/include/mp-units/framework/dimension.h
+++ b/src/core/include/mp-units/framework/dimension.h
@@ -220,13 +220,18 @@ template<std::intmax_t Num, std::intmax_t Den = 1, Dimension D>
 [[nodiscard]] consteval Dimension auto cbrt(Dimension auto d) { return pow<1, 3>(d); }
 
 
-MP_UNITS_DIAGNOSTIC_PUSH
-MP_UNITS_DIAGNOSTIC_IGNORE_DEPRECATED
 struct dimension_symbol_formatting {
+#if MP_UNITS_COMP_CLANG
+  // TODO prevents the deprecated usage in implicit copy constructor warning
+  character_set char_set = character_set::default_character_set;
+#else
   [[deprecated("Use `char_set` instead")]] character_set encoding = character_set::default_character_set;
+  MP_UNITS_DIAGNOSTIC_PUSH
+  MP_UNITS_DIAGNOSTIC_IGNORE_DEPRECATED
   character_set char_set = encoding;
+  MP_UNITS_DIAGNOSTIC_POP
+#endif
 };
-MP_UNITS_DIAGNOSTIC_POP
 
 MP_UNITS_EXPORT_END
 
diff --git a/src/core/include/mp-units/framework/unit_symbol_formatting.h b/src/core/include/mp-units/framework/unit_symbol_formatting.h
index f264343be..04e4954f8 100644
--- a/src/core/include/mp-units/framework/unit_symbol_formatting.h
+++ b/src/core/include/mp-units/framework/unit_symbol_formatting.h
@@ -53,15 +53,20 @@ enum class unit_symbol_separator : std::int8_t {
   default_separator = space
 };
 
-MP_UNITS_DIAGNOSTIC_PUSH
-MP_UNITS_DIAGNOSTIC_IGNORE_DEPRECATED
 struct unit_symbol_formatting {
+#if MP_UNITS_COMP_CLANG
+  // TODO prevents the deprecated usage in implicit copy constructor warning
+  character_set char_set = character_set::default_character_set;
+#else
   [[deprecated("Use `char_set` instead")]] character_set encoding = character_set::default_character_set;
+  MP_UNITS_DIAGNOSTIC_PUSH
+  MP_UNITS_DIAGNOSTIC_IGNORE_DEPRECATED
   character_set char_set = encoding;
+  MP_UNITS_DIAGNOSTIC_POP
+#endif
 
   unit_symbol_solidus solidus = unit_symbol_solidus::default_denominator;
   unit_symbol_separator separator = unit_symbol_separator::default_separator;
 };
-MP_UNITS_DIAGNOSTIC_POP
 
 }  // namespace mp_units
diff --git a/test/runtime/fmt_test.cpp b/test/runtime/fmt_test.cpp
index a163c1877..ebce5ad9e 100644
--- a/test/runtime/fmt_test.cpp
+++ b/test/runtime/fmt_test.cpp
@@ -55,7 +55,7 @@ using v = cartesian_vector<double>;
 
 TEST_CASE("dimension_symbol", "[dimension][symbol]")
 {
-  using enum text_encoding;
+  using enum character_set;
 
   std::ostringstream os;
 
@@ -67,14 +67,14 @@ TEST_CASE("dimension_symbol", "[dimension][symbol]")
 
   SECTION("Portable mode")
   {
-    os << dimension_symbol<dimension_symbol_formatting{.encoding = portable}>(isq::power.dimension);
+    os << dimension_symbol<dimension_symbol_formatting{.char_set = portable}>(isq::power.dimension);
     CHECK(os.str() == "L^2MT^-3");
   }
 }
 
 TEST_CASE("unit_symbol", "[unit][symbol]")
 {
-  using enum text_encoding;
+  using enum character_set;
   using enum unit_symbol_solidus;
   using enum unit_symbol_separator;
 
@@ -88,7 +88,7 @@ TEST_CASE("unit_symbol", "[unit][symbol]")
 
   SECTION("Portable mode")
   {
-    os << unit_symbol<unit_symbol_formatting{.encoding = portable}>(m / s2);
+    os << unit_symbol<unit_symbol_formatting{.char_set = portable}>(m / s2);
     CHECK(os.str() == "m/s^2");
   }