diff --git a/wscript b/wscript
index 62fb6ac02c..05f271c91f 100644
--- a/wscript
+++ b/wscript
@@ -757,7 +757,7 @@ int main() { return 0; }''',
          '-D_LARGEFILE64_SOURCE', '-D_FILE_OFFSET_BITS=64'))
     cxx_flags.extend(
         ('-D__STDC_LIMIT_MACROS', '-D__STDC_FORMAT_MACROS',
-         '-DCANVAS_COMPATIBILITY', '-DCANVAS_DEBUG'))
+         '-DCANVAS_DEBUG'))
 
     # Do not use Boost.System library
     cxx_flags.append('-DBOOST_ERROR_CODE_HEADER_ONLY')