1 files changed, 5 insertions, 0 deletions

diff --git a/eq.h b/eq.h
index 2ad7beb..fd28b25 100644
--- a/eq.h
+++ b/eq.h
@@ -1,4 +1,9 @@
+#ifndef EQ_H
+#define EQ_H
+
 extern unsigned char eq_levels[];
 
 void eq_decay();
 void eq_read();
+
+#endif