diff --git a/libraries/fc/include/fc/crypto/elliptic.hpp b/libraries/fc/include/fc/crypto/elliptic.hpp
index 26128682b5c..9defffaba6c 100644
--- a/libraries/fc/include/fc/crypto/elliptic.hpp
+++ b/libraries/fc/include/fc/crypto/elliptic.hpp
@@ -231,10 +231,10 @@ namespace fc {
       };
 
   } // namespace ecc
-  void to_variant( const ecc::private_key& var,  variant& vo );
-  void from_variant( const variant& var,  ecc::private_key& vo );
-  void to_variant( const ecc::public_key& var,  variant& vo );
-  void from_variant( const variant& var,  ecc::public_key& vo );
+  void to_variant( const ecc::private_key& var,  variant& vo, uint32_t max_depth );
+  void from_variant( const variant& var,  ecc::private_key& vo, uint32_t max_depth );
+  void to_variant( const ecc::public_key& var,  variant& vo, uint32_t max_depth );
+  void from_variant( const variant& var,  ecc::public_key& vo, uint32_t max_depth );
 
   namespace raw
   {
diff --git a/libraries/fc/src/crypto/elliptic_common.cpp b/libraries/fc/src/crypto/elliptic_common.cpp
index 146dab88e82..3569c0afc79 100644
--- a/libraries/fc/src/crypto/elliptic_common.cpp
+++ b/libraries/fc/src/crypto/elliptic_common.cpp
@@ -222,7 +222,7 @@ namespace fc { namespace ecc {
 
 }
 
-   void to_variant( const ecc::private_key& var,  variant& vo, uint32_t )
+void to_variant( const ecc::private_key& var,  variant& vo, uint32_t )
 {
     vo = var.get_secret();
 }