diff --git a/libs/units/example/autoprefixes.cpp b/libs/units/example/autoprefixes.cpp
index 9966766c6..090be0906 100644
--- a/libs/units/example/autoprefixes.cpp
+++ b/libs/units/example/autoprefixes.cpp
@@ -67,7 +67,7 @@ struct thing_base_unit : boost::units::base_unit<thing_base_unit, boost::units::
 struct euro_base_unit : boost::units::base_unit<euro_base_unit, boost::units::dimensionless_type, 5>
 {
   static constexpr const char* name() { return("EUR"); }
-  static constexpr const char* symbol() { return(""); }
+  static constexpr const char* symbol() { return("€"); }
 };
 
 int main()
@@ -140,7 +140,7 @@ int main()
 
   quantity<euro_base_unit::unit_type> ce = 2048. * euro_base_unit::unit_type();
   cout << name_format << engineering_prefix << ce << endl;  // 2.048 kiloEUR
-  cout << symbol_format << engineering_prefix << ce << endl;  // 2.048 k
+  cout << symbol_format << engineering_prefix << ce << endl;  // 2.048 k€
 
 
     return 0;
-- 
2.19.1