1 files changed, 1 insertions, 1 deletions
diff --git a/tests/debug_nr.l b/tests/debug_nr.l
index 0596dce..8110ab4 100644
--- a/tests/debug_nr.l
+++ b/tests/debug_nr.l
@@ -41,7 +41,7 @@
 int main(void);
 
 int
-main ()
+main (void)
 {
     yyin = stdin;
     yyout = stdout;