diff --git a/wscript b/wscript
index 8c52b8b..314327e 100644
--- a/wscript
+++ b/wscript
@@ -52,7 +52,7 @@
         conf.define ('_DEBUG', 1)
         conf.env.append_value('CXXFLAGS', ['-O0', '-g3'])
     else:
-        conf.env.append_value('CXXFLAGS', ['-O3'])
+        conf.env.append_value('CXXFLAGS', ['-O3', '-g'])
 
     if conf.options._test:
       conf.define('_TEST', 1)