1 files changed, 1 insertions, 1 deletions

diff --git a/src/lex.l b/src/lex.l
index d07a085..81be8e8 100644
--- a/src/lex.l
+++ b/src/lex.l
@@ -139,7 +139,7 @@ number                          [0-9]+
 
 #ifndef yywrap
 int
-yywrap()
+yywrap(void)
 {
     return (1);
 }