diff --git a/src/modules/_Crypto/precompiled_crypto.h b/src/modules/_Crypto/precompiled_crypto.h
index aa63f4d8450ee239603e0b5dd4a72a4b6e8b0d30..f48268521cdc6bb4e55041dbe68a90925da3052a 100644
--- a/src/modules/_Crypto/precompiled_crypto.h
+++ b/src/modules/_Crypto/precompiled_crypto.h
@@ -72,6 +72,7 @@ struct pike_pipe {
   struct object **objects;
   INT32 num_objs;
   INT32 block_size;
+  INT32 mode;
 };
 
 /*