diff --git a/embulk-output-sqlserver/src/main/java/org/embulk/output/sqlserver/SQLServerOutputConnection.java b/embulk-output-sqlserver/src/main/java/org/embulk/output/sqlserver/SQLServerOutputConnection.java
index 94d7722b..c11df129 100644
--- a/embulk-output-sqlserver/src/main/java/org/embulk/output/sqlserver/SQLServerOutputConnection.java
+++ b/embulk-output-sqlserver/src/main/java/org/embulk/output/sqlserver/SQLServerOutputConnection.java
@@ -44,7 +44,7 @@ protected String buildColumnTypeName(JdbcColumn c)
         case "BOOLEAN":
             return "BIT";
         case "CLOB":
-            return "TEXT";
+            return "NVARCHAR(max)";
         case "TIMESTAMP":
             return "DATETIME2";
         case "NVARCHAR":