diff --git a/e2e_test/iceberg/test_case/iceberg_engine.slt b/e2e_test/iceberg/test_case/iceberg_engine.slt
index 8129dd6265d83..a8b5fd21c598e 100644
--- a/e2e_test/iceberg/test_case/iceberg_engine.slt
+++ b/e2e_test/iceberg/test_case/iceberg_engine.slt
@@ -66,4 +66,26 @@ statement ok
 DROP TABLE full_type_t;
 
 
+# test connector with commit_checkpoint_interval
+statement ok
+create table nexmark_t (
+  id BIGINT,
+  item_name VARCHAR,
+  description VARCHAR,
+  initial_bid BIGINT,
+  reserve BIGINT,
+  date_time TIMESTAMP,
+  expires TIMESTAMP,
+  seller BIGINT,
+  category BIGINT,
+  extra VARCHAR)
+with (
+  connector = 'nexmark',
+  nexmark.table.type = 'Auction',
+  nexmark.split.num = '2',
+  nexmark.min.event.gap.in.ns = '500000',
+  commit_checkpoint_interval = 1
+) engine = iceberg;
 
+statement ok
+DROP TABLE nexmark_t
diff --git a/src/frontend/src/handler/create_table.rs b/src/frontend/src/handler/create_table.rs
index 1fa960da971d9..6668448c3d836 100644
--- a/src/frontend/src/handler/create_table.rs
+++ b/src/frontend/src/handler/create_table.rs
@@ -35,6 +35,7 @@ use risingwave_common::util::sort_util::{ColumnOrder, OrderType};
 use risingwave_common::util::value_encoding::DatumToProtoExt;
 use risingwave_common::{bail, bail_not_implemented};
 use risingwave_connector::jvm_runtime::JVM;
+use risingwave_connector::sink::decouple_checkpoint_log_sink::COMMIT_CHECKPOINT_INTERVAL;
 use risingwave_connector::source::cdc::build_cdc_table_id;
 use risingwave_connector::source::cdc::external::{
     ExternalTableConfig, ExternalTableImpl, DATABASE_NAME_KEY, SCHEMA_NAME_KEY, TABLE_NAME_KEY,
@@ -1381,7 +1382,7 @@ pub async fn handle_create_table(
 pub async fn create_iceberg_engine_table(
     session: Arc<SessionImpl>,
     handler_args: HandlerArgs,
-    source: Option<PbSource>,
+    mut source: Option<PbSource>,
     table: PbTable,
     graph: StreamFragmentGraph,
     job_type: TableJobType,
@@ -1621,7 +1622,7 @@ pub async fn create_iceberg_engine_table(
     with.insert("table.name".to_owned(), iceberg_table_name.clone());
     let commit_checkpoint_interval = handler_args
         .with_options
-        .get("commit_checkpoint_interval")
+        .get(COMMIT_CHECKPOINT_INTERVAL)
         .map(|v| v.to_owned())
         .unwrap_or_else(|| "60".to_owned());
     let commit_checkpoint_interval = commit_checkpoint_interval.parse::<u32>().map_err(|_| {
@@ -1635,13 +1636,18 @@ pub async fn create_iceberg_engine_table(
         bail!("commit_checkpoint_interval must be a positive integer: 0");
     }
 
+    // remove commit_checkpoint_interval from source options, otherwise it will be considered as an unknown field.
+    source
+        .as_mut()
+        .map(|x| x.with_properties.remove(COMMIT_CHECKPOINT_INTERVAL));
+
     let sink_decouple = session.config().sink_decouple();
     if matches!(sink_decouple, SinkDecouple::Disable) && commit_checkpoint_interval > 1 {
         bail!("config conflict: `commit_checkpoint_interval` larger than 1 means that sink decouple must be enabled, but session config sink_decouple is disabled")
     }
 
     with.insert(
-        "commit_checkpoint_interval".to_owned(),
+        COMMIT_CHECKPOINT_INTERVAL.to_owned(),
         commit_checkpoint_interval.to_string(),
     );
     with.insert("create_table_if_not_exists".to_owned(), "true".to_owned());