diff --git a/include/nn/ac.h b/include/nn/ac.h
index f4be310..c5abc7f 100644
--- a/include/nn/ac.h
+++ b/include/nn/ac.h
@@ -6,4 +6,3 @@
 
 #include <nn/ac/ac_c.h>
 #include <nn/ac/ac_cpp.h>
-#include <nn/ac/ac_types.h>