diff --git a/EncryptInplace.h b/EncryptInplace.h
index a2b46cf..5967632 100644
--- a/EncryptInplace.h
+++ b/EncryptInplace.h
@@ -30,7 +30,6 @@
 #define ENABLE_INPLACE_ERR_DEV (-2) /* crypto_blkdev issue */
 
 int cryptfs_enable_inplace(const char* crypto_blkdev, const char* real_blkdev, off64_t size,
-                           off64_t* size_already_done, off64_t tot_size,
-                           off64_t previously_encrypted_upto, bool set_progress_properties);
+                           bool set_progress_properties);
 
 #endif