diff --git a/src/cmd-run.h b/src/cmd-run.h
index a8b1508..ddd045a 100644
--- a/src/cmd-run.h
+++ b/src/cmd-run.h
@@ -24,7 +24,7 @@ extern char** cmd_run_acl(int argc,char** argv,struct sub_command* cmd);
 extern char** cmd_run_lispworks(int argc,char** argv,struct sub_command* cmd);
 extern char** cmd_run_mkcl(int argc,char** argv,struct sub_command* cmd);
 extern char** cmd_run_npt(int argc,char** argv,struct sub_command* cmd);
-extern LVal register_runtime_options();
+extern struct proc_opt* register_runtime_options(struct proc_opt* cmd);
 int setup(char* target,char* env,char* impl);
 #define SETUP_SYSTEM(sys,msg) {\
     cond_printf(0,"%s",msg);   \