diff --git a/crypto/ext4crypt/Keymaster4.h b/crypto/ext4crypt/Keymaster4.h
index 29c73c6..37bff4e 100644
--- a/crypto/ext4crypt/Keymaster4.h
+++ b/crypto/ext4crypt/Keymaster4.h
@@ -142,10 +142,10 @@
     upgrade = -2,
 };
 
-int keymaster_compatibility_cryptfs_scrypt();
-int keymaster_create_key_for_cryptfs_scrypt(uint32_t rsa_key_size, uint64_t rsa_exponent,
+//int keymaster_compatibility_cryptfs_scrypt();
+/*int keymaster_create_key_for_cryptfs_scrypt(uint32_t rsa_key_size, uint64_t rsa_exponent,
                                             uint32_t ratelimit, uint8_t* key_buffer,
-                                            uint32_t key_buffer_size, uint32_t* key_out_size);
+                                            uint32_t key_buffer_size, uint32_t* key_out_size);*/
 
 int keymaster_upgrade_key_for_cryptfs_scrypt(uint32_t rsa_key_size, uint64_t rsa_exponent,
                                              uint32_t ratelimit, const uint8_t* key_blob,