diff --git a/src/main/java/fr/xephi/authme/datasource/MySQL.java b/src/main/java/fr/xephi/authme/datasource/MySQL.java
index fd11d9ea8..1e81162a3 100644
--- a/src/main/java/fr/xephi/authme/datasource/MySQL.java
+++ b/src/main/java/fr/xephi/authme/datasource/MySQL.java
@@ -496,10 +496,12 @@ public class MySQL implements DataSource {
                 rs = pst.executeQuery();
                 if (rs.next()) {
                     int id = rs.getInt(columnID);
-                    pst2 = con.prepareStatement("INSERT INTO xf_user_authenticate (user_id, scheme_class, data) VALUES (?,?,?);");
+                    sql = "INSERT INTO xf_user_authenticate (user_id, scheme_class, data) VALUES (?,?,?)";
+                    pst2 = con.prepareStatement(sql);
                     pst2.setInt(1, id);
-                    pst2.setString(2, "XenForo_Authentication_Core12");
-                    byte[] bytes = auth.getPassword().getHash().getBytes();
+                    pst2.setString(2, XFBCRYPT.SCHEME_CLASS);
+                    String serializedHash = XFBCRYPT.serializeHash(auth.getPassword().getHash());
+                    byte[] bytes = serializedHash.getBytes();
                     Blob blob = con.createBlob();
                     blob.setBytes(1, bytes);
                     pst2.setBlob(3, blob);
@@ -554,7 +556,8 @@ public class MySQL implements DataSource {
                     // Insert password in the correct table
                     sql = "UPDATE xf_user_authenticate SET data=? WHERE " + columnID + "=?;";
                     PreparedStatement pst2 = con.prepareStatement(sql);
-                    byte[] bytes = password.getHash().getBytes();
+                    String serializedHash = XFBCRYPT.serializeHash(password.getHash());
+                    byte[] bytes = serializedHash.getBytes();
                     Blob blob = con.createBlob();
                     blob.setBytes(1, bytes);
                     pst2.setBlob(1, blob);
@@ -564,7 +567,7 @@ public class MySQL implements DataSource {
                     // ...
                     sql = "UPDATE xf_user_authenticate SET scheme_class=? WHERE " + columnID + "=?;";
                     pst2 = con.prepareStatement(sql);
-                    pst2.setString(1, "XenForo_Authentication_Core12");
+                    pst2.setString(1, XFBCRYPT.SCHEME_CLASS);
                     pst2.setInt(2, id);
                     pst2.executeUpdate();
                     pst2.close();
diff --git a/src/main/java/fr/xephi/authme/security/crypts/XFBCRYPT.java b/src/main/java/fr/xephi/authme/security/crypts/XFBCRYPT.java
index 6666a076c..75c6a7911 100644
--- a/src/main/java/fr/xephi/authme/security/crypts/XFBCRYPT.java
+++ b/src/main/java/fr/xephi/authme/security/crypts/XFBCRYPT.java
@@ -4,6 +4,7 @@ import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
 public class XFBCRYPT extends BCRYPT {
+    public static final String SCHEME_CLASS = "XenForo_Authentication_Core12";
     private static final Pattern HASH_PATTERN = Pattern.compile("\"hash\";s.*\"(.*)?\"");
 
     @Override
@@ -19,4 +20,8 @@ public class XFBCRYPT extends BCRYPT {
         }
         return "*"; // what?
     }
+
+    public static String serializeHash(String hash) {
+        return "a:1:{s:4:\"hash\";s:" + hash.length() + ":\""+hash+"\";}";
+    }
 }