diff --git a/src/console.h b/src/console.h
index 55fde58..3b9f746 100644
--- a/src/console.h
+++ b/src/console.h
@@ -35,6 +35,9 @@
  * of it.
  */
 
+#ifndef KMSCON_CONSOLE_H
+#define KMSCON_CONSOLE_H
+
 #include <inttypes.h>
 #include <stdlib.h>
 #include "font.h"
@@ -79,3 +82,5 @@ void kmscon_console_map(struct kmscon_console *con);
 
 void kmscon_console_write(struct kmscon_console *con, kmscon_symbol_t ch);
 void kmscon_console_newline(struct kmscon_console *con);
+
+#endif /* KMSCON_CONSOLE_H */