diff --git a/include/regexp9.h b/include/regexp9.h
index b241712..9e1c01b 100644
--- a/include/regexp9.h
+++ b/include/regexp9.h
@@ -4,6 +4,8 @@
 extern "C" { 
 #endif
 
+AUTOLIB(regexp9)
+
 #include <utf.h>
 
 typedef struct Resub		Resub;