diff --git a/include/optimization/GVN.h b/include/optimization/GVN.h
index 4de1168bb4fe3320781c14e9095bc473c0f1f604..c0e678c2fec82d876025747caedc4fa754f4ba1a 100644
--- a/include/optimization/GVN.h
+++ b/include/optimization/GVN.h
@@ -20,7 +20,7 @@
 #include <utility>
 #include <vector>
 
-#define __DEBUG__
+// #define __DEBUG__
 
 class GVN;
 namespace GVNExpression {