diff --git a/include/build.h b/include/build.h
index fa86f5ceed..25afaaa811 100644
--- a/include/build.h
+++ b/include/build.h
@@ -1,8 +1,8 @@
 #ifndef BUILD_H
 #define BUILD_H
 
-extern char gBuildCreator[];
-extern char gBuildDate[];
-extern char gBuildMakeOption[];
+extern const char gBuildCreator[];
+extern const char gBuildDate[];
+extern const char gBuildMakeOption[];
 
 #endif
diff --git a/src/boot/build.c b/src/boot/build.c
index 31bb340164..87bd5df8dd 100644
--- a/src/boot/build.c
+++ b/src/boot/build.c
@@ -1,3 +1,5 @@
+#include "build.h"
+
 const char gBuildCreator[] = "zelda@srd44";
 const char gBuildDate[] = "00-07-31 17:04:16";
 const char gBuildMakeOption[] = "";