diff --git a/cs5300/examples/calc/scanner.l b/cs5300/examples/calc/scanner.l
index 5be6a22..caffd34 100644
--- a/cs5300/examples/calc/scanner.l
+++ b/cs5300/examples/calc/scanner.l
@@ -4,6 +4,8 @@
 #include "parser.hpp"
 %}
 
+%option noyywrap
+
 %%
 
 "+" {return ADD;}