1 files changed, 5 insertions, 0 deletions
diff --git a/parse.h b/parse.h
index 95a1fa8..681233e 100644
--- a/parse.h
+++ b/parse.h
@@ -1,3 +1,8 @@
+#ifndef HENCE_PARSE_H
+#define HENCE_PARSE_H
+
 #include <stdio.h>
 
 int parse(const char*, FILE*, struct token *);
+
+#endif