diff --git a/crypto/lollipop/cryptfs.h b/crypto/lollipop/cryptfs.h
index 8cb8a7a..bc8b463 100644
--- a/crypto/lollipop/cryptfs.h
+++ b/crypto/lollipop/cryptfs.h
@@ -213,6 +213,7 @@
   int cryptfs_check_passwd(char *pw);
   int cryptfs_verify_passwd(char *newpw);
   int cryptfs_get_password_type(void);
+  int delete_crypto_blk_dev(char *name);
 #ifdef __cplusplus
 }
 #endif