diff --git a/tree234.h b/tree234.h
index 6675e982..3ccacddb 100644
--- a/tree234.h
+++ b/tree234.h
@@ -66,4 +66,4 @@ void del234(tree234 *t, void *e);
 void *first234(tree234 *t, enum234 *e);
 void *next234(enum234 *e);
 
-#endif /* TREE234_H */
\ No newline at end of file
+#endif /* TREE234_H */