diff --git a/bindings/python/mapnik_enumeration.hpp b/bindings/python/mapnik_enumeration.hpp
index 230daa817..c01875c87 100644
--- a/bindings/python/mapnik_enumeration.hpp
+++ b/bindings/python/mapnik_enumeration.hpp
@@ -77,7 +77,7 @@ private:
 
         for (unsigned i = 0; i < EnumWrapper::MAX; ++i)
         {
-            // Register the strings allready defined for this enum.
+            // Register the strings already defined for this enum.
             base_type::value( EnumWrapper::get_string( i ), native_type( i ) );
         }
     }
diff --git a/include/mapnik/enumeration.hpp b/include/mapnik/enumeration.hpp
index 3efdd10dc..8e92662b9 100644
--- a/include/mapnik/enumeration.hpp
+++ b/include/mapnik/enumeration.hpp
@@ -319,9 +319,16 @@ operator>>(std::istream & is, mapnik::enumeration<ENUM, THE_MAX> & e)
 /** Helper macro. Runs the verify() method during static initialization.
  * @relates mapnik::enumeration
  */
+#if defined __clang__
+#define IMPLEMENT_ENUM( name, strings )                                 \
+    const char ** name ::our_strings_ = strings;                        \
+    std::string name ::our_name_ = #name;                               \
+    bool name ::our_verified_flag_( name ::verify(__FILE__, __LINE__));
+#else
 #define IMPLEMENT_ENUM( name, strings )                                 \
     template <> const char ** name ::our_strings_ = strings;            \
     template <> std::string name ::our_name_ = #name;                   \
     template <> bool name ::our_verified_flag_( name ::verify(__FILE__, __LINE__));
+#endif
 
 #endif // MAPNIK_ENUMERATION_INCLUDED