diff --git a/src/main/java/io/connect/scylladb/ScyllaDbSinkConnectorConfig.java b/src/main/java/io/connect/scylladb/ScyllaDbSinkConnectorConfig.java
index 9744e44..cf03ce0 100644
--- a/src/main/java/io/connect/scylladb/ScyllaDbSinkConnectorConfig.java
+++ b/src/main/java/io/connect/scylladb/ScyllaDbSinkConnectorConfig.java
@@ -588,7 +588,7 @@ public static ConfigDef config() {
                     "Execute statement timeout (in ms)")
             .define(
                     TTL_CONFIG,
-                    ConfigDef.Type.STRING,
+                    ConfigDef.Type.INT,
                     TTL_DEFAULT,
                     ConfigDef.Importance.MEDIUM,
                     TTL_DOC,