diff --git a/vm/os-netbsd.cpp b/vm/os-netbsd.cpp
index cd397bdae1..7a3cb30652 100755
--- a/vm/os-netbsd.cpp
+++ b/vm/os-netbsd.cpp
@@ -3,13 +3,13 @@
 namespace factor
 {
 
-extern int main();
+extern "C" int main();
 
 const char *vm_executable_path(void)
 {
 	static Dl_info info = {0};
 	if (!info.dli_fname)
-		dladdr(main, &info);
+		dladdr((void *)main, &info);
 	return info.dli_fname;
 }