diff --git a/sudo.h b/sudo.h
index de8afbfba..34660f699 100644
--- a/sudo.h
+++ b/sudo.h
@@ -230,6 +230,7 @@ extern int Argc;
 extern char **Argv;
 extern int NewArgc;
 extern char **NewArgv;
+extern FILE *sudoers_fp;
 #endif
 extern int errno;