diff --git a/compiler/cpp/src/thrift.l b/compiler/cpp/src/thrift.l
index a353786..14a9e4b 100644
--- a/compiler/cpp/src/thrift.l
+++ b/compiler/cpp/src/thrift.l
@@ -83,7 +83,6 @@
 
 {hexconstant} {
   sscanf(yytext+2, "%x", &yylval.iconst);
-  printf("%d\n", yylval.iconst);
   return tok_int_constant;
 }