diff --git a/rai/interface.cpp b/rai/interface.cpp
index 247a0017..42e07e3e 100644
--- a/rai/interface.cpp
+++ b/rai/interface.cpp
@@ -14,13 +14,19 @@ extern "C" {
 void xrb_uint256_to_string (xrb_uint256 source, char * destination)
 {
 	auto const & number (*reinterpret_cast <rai::uint256_union *> (source));
-	strncpy (destination, number.to_string ().c_str (), 65);
+	strncpy (destination, number.to_string ().c_str (), 64);
+}
+
+void xrb_uint256_to_address (xrb_uint256 source, char * destination)
+{
+	auto const & number (*reinterpret_cast <rai::uint256_union *> (source));
+	strncpy (destination, number.to_account ().c_str (), 65);
 }
 
 void xrb_uint512_to_string (xrb_uint512 source, char * destination)
 {
 	auto const & number (*reinterpret_cast <rai::uint512_union *> (source));
-	strncpy (destination, number.to_string ().c_str (), 129);
+	strncpy (destination, number.to_string ().c_str (), 128);
 }
 
 int xrb_uint256_from_string (const char * source, xrb_uint256 destination)
diff --git a/rai/interface.h b/rai/interface.h
index 562519b3..cd8d68c9 100644
--- a/rai/interface.h
+++ b/rai/interface.h
@@ -11,6 +11,8 @@ typedef void * xrb_transaction;
 
 // Convert public/private key bytes 'source' to a 64 byte not-null-terminated hex string 'destination'
 void xrb_uint256_to_string (const xrb_uint256 source, char * destination);
+// Convert public key bytes 'source' to a 65 byte non-null-terminated account string 'destination'
+void xrb_uint256_to_address (xrb_uint256 source, char * destination)
 // Convert public/private key bytes 'source' to a 128 byte not-null-terminated hex string 'destination'
 void xrb_uint512_to_string (const xrb_uint512 source, char * destination);