diff --git a/src/main/scala/lc/Main.scala b/src/main/scala/lc/Main.scala
index faafcbb..4755a52 100644
--- a/src/main/scala/lc/Main.scala
+++ b/src/main/scala/lc/Main.scala
@@ -18,8 +18,8 @@ import scala.Array
 class Captcha {
   val con: Connection = DriverManager.getConnection("jdbc:h2:./captcha", "sa", "")
   val stmt: Statement = con.createStatement()
-  stmt.execute("CREATE TABLE IF NOT EXISTS challenge(token varchar, id varchar, secret varchar, provider varchar, image blob)")
-  val insertPstmt: PreparedStatement = con.prepareStatement("INSERT INTO challenge(token, id, secret, provider, image) VALUES (?, ?, ?, ?, ?)")
+  stmt.execute("CREATE TABLE IF NOT EXISTS challenge(token varchar, id varchar, secret varchar, provider varchar, contentType varchar, image blob)")
+  val insertPstmt: PreparedStatement = con.prepareStatement("INSERT INTO challenge(token, id, secret, provider, contentType, image) VALUES (?, ?, ?, ?, ?, ?)")
   val selectPstmt: PreparedStatement = con.prepareStatement("SELECT secret, provider FROM challenge WHERE token = ?")
   val imagePstmt: PreparedStatement = con.prepareStatement("SELECT image FROM challenge WHERE token = ?")
 
@@ -48,7 +48,8 @@ class Captcha {
     insertPstmt.setString(2, provider.getId)
     insertPstmt.setString(3, challenge.secret)
     insertPstmt.setString(4, providerMap)
-    insertPstmt.setBlob(5, blob)
+    insertPstmt.setString(5, challenge.contentType)
+    insertPstmt.setBlob(6, blob)
     insertPstmt.executeUpdate()
     id
   }
@@ -65,7 +66,8 @@ class Captcha {
 	    insertPstmt.setString(2, provider.getId)
 	    insertPstmt.setString(3, challenge.secret)
 	    insertPstmt.setString(4, providerMap)
-	    insertPstmt.setBlob(5, blob)
+	    insertPstmt.setString(5, challenge.contentType)
+	    insertPstmt.setBlob(6, blob)
 	    insertPstmt.executeUpdate()
   	}
   }