diff --git a/Makefile b/Makefile
index 9eb0ca6..6f936a0 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 debug:
-	/usr/bin/scons debug_symbols=yes
+	/usr/bin/scons debug_symbols=yes optimize=none
 
 develop:
 	/usr/bin/scons