diff --git a/src/setproctitle.c b/src/setproctitle.c
index e4f648a..0d97954 100644
--- a/src/setproctitle.c
+++ b/src/setproctitle.c
@@ -257,11 +257,14 @@ setproctitle_impl(const char *fmt, ...)
 }
 __asm__(".symver setproctitle_impl,setproctitle@@LIBBSD_0.5");
 
-#ifdef HAVE_TYPEOF
 /* The original function introduced in 0.2 was a stub, it only got implemented
  * in 0.5, make the implementation available in the old version as an alias
  * for code linking against that version, and change the default to use the
  * new version, so that new code depends on the implemented version. */
+#ifdef HAVE_TYPEOF
 extern typeof(setproctitle_impl) setproctitle_stub __attribute__((alias("setproctitle_impl")));
-__asm__(".symver setproctitle_stub,setproctitle@LIBBSD_0.2");
+#else
+void setproctitle_stub(const char *fmt, ...)
+	__attribute__((alias("setproctitle_impl")));
 #endif
+__asm__(".symver setproctitle_stub,setproctitle@LIBBSD_0.2");