diff --git a/amalgamate.py b/amalgamate.py
index 6e3b11a..eab724f 100644
--- a/amalgamate.py
+++ b/amalgamate.py
@@ -65,7 +65,7 @@
     header.add_text( '# define JSON_AMALGATED_H_INCLUDED' )
     header.add_text( '/// If defined, indicates that the source file is amalgated' )
     header.add_text( '/// to prevent private header inclusion.' )
-    header.add_text( '#define JSON_IS_AMALGATED' )
+    header.add_text( '#define JSON_IS_AMALGAMATION' )
     header.add_file( 'include/json/config.h' )
     header.add_file( 'include/json/forwards.h' )
     header.add_file( 'include/json/features.h' )
@@ -90,7 +90,7 @@
     header.add_text( '# define JSON_FORWARD_AMALGATED_H_INCLUDED' )
     header.add_text( '/// If defined, indicates that the source file is amalgated' )
     header.add_text( '/// to prevent private header inclusion.' )
-    header.add_text( '#define JSON_IS_AMALGATED' )
+    header.add_text( '#define JSON_IS_AMALGAMATION' )
     header.add_file( 'include/json/config.h' )
     header.add_file( 'include/json/forwards.h' )
     header.add_text( '#endif //ifndef JSON_FORWARD_AMALGATED_H_INCLUDED' )
@@ -108,12 +108,13 @@
     source.add_text( '' )
     source.add_text( '#include <%s>' % header_include_path )
     source.add_text( '' )
-    source.add_file( 'src/lib_json\json_tool.h' )
-    source.add_file( 'src/lib_json\json_reader.cpp' )
-    source.add_file( 'src/lib_json\json_batchallocator.h' )
-    source.add_file( 'src/lib_json\json_valueiterator.inl' )
-    source.add_file( 'src/lib_json\json_value.cpp' )
-    source.add_file( 'src/lib_json\json_writer.cpp' )
+    lib_json = 'src/lib_json'
+    source.add_file( os.path.join(lib_json, 'json_tool.h') )
+    source.add_file( os.path.join(lib_json, 'json_reader.cpp') )
+    source.add_file( os.path.join(lib_json, 'json_batchallocator.h') )
+    source.add_file( os.path.join(lib_json, 'json_valueiterator.inl') )
+    source.add_file( os.path.join(lib_json, 'json_value.cpp') )
+    source.add_file( os.path.join(lib_json, 'json_writer.cpp') )
 
     print 'Writing amalgated source to %r' % target_source_path
     source.write_to( target_source_path )