diff --git a/include/unknown_066500.h b/include/unknown_066500.h
new file mode 100644
index 00000000..1110dd65
--- /dev/null
+++ b/include/unknown_066500.h
@@ -0,0 +1,4 @@
+#ifndef _UNKNOWN_066500_H_
+#define _UNKNOWN_066500_H_
+
+#endif
\ No newline at end of file
diff --git a/src/unknown_066500.c b/src/unknown_066500.c
index a604123d..b111b92a 100644
--- a/src/unknown_066500.c
+++ b/src/unknown_066500.c
@@ -1,6 +1,8 @@
 /* The comment below is needed for this file to be picked up by generate_ld */
 /* RAM_POS: 0x80065900 */
 
+#include "unknown_066500.h"
+
 #include "types.h"
 #include "macros.h"