diff --git a/src/Common/FailPoint.cpp b/src/Common/FailPoint.cpp
index 887509a19b92..c83f7b893050 100644
--- a/src/Common/FailPoint.cpp
+++ b/src/Common/FailPoint.cpp
@@ -118,7 +118,8 @@ static struct InitFiu
     REGULAR(sleep_in_logs_flush) \
     ONCE(smt_commit_exception_before_op) \
     ONCE(backup_add_empty_memory_table) \
-    REGULAR(refresh_task_stop_racing_for_running_refresh)
+    REGULAR(refresh_task_stop_racing_for_running_refresh) \
+    ONCE(database_iceberg_gcs)
 
 
 namespace FailPoints
diff --git a/src/Databases/DataLake/ICatalog.cpp b/src/Databases/DataLake/ICatalog.cpp
index c7ab78030411..eceaa73e55b6 100644
--- a/src/Databases/DataLake/ICatalog.cpp
+++ b/src/Databases/DataLake/ICatalog.cpp
@@ -5,10 +5,18 @@
 
 #include <filesystem>
 
+#include <Common/FailPoint.h>
+
 namespace DB::ErrorCodes
 {
     extern const int NOT_IMPLEMENTED;
     extern const int LOGICAL_ERROR;
+    extern const int BAD_ARGUMENTS;
+}
+
+namespace DB::FailPoints
+{
+    extern const char database_iceberg_gcs[];
 }
 
 namespace DataLake
@@ -49,9 +57,14 @@ StorageType parseStorageTypeFromString(const std::string & type)
     }
     if (capitalize_first_letter(storage_type_str) == "File")
         storage_type_str = "Local";
-
-    if (capitalize_first_letter(storage_type_str) == "S3a")
+    else if (capitalize_first_letter(storage_type_str) == "S3a" || storage_type_str == "oss" || storage_type_str == "gs")
+    {
+        fiu_do_on(DB::FailPoints::database_iceberg_gcs,
+        {
+            throw DB::Exception(DB::ErrorCodes::BAD_ARGUMENTS, "Google cloud storage converts to S3");
+        });
         storage_type_str = "S3";
+    }
 
     auto storage_type = magic_enum::enum_cast<StorageType>(capitalize_first_letter(storage_type_str));
 
diff --git a/tests/integration/test_database_iceberg/test.py b/tests/integration/test_database_iceberg/test.py
index 1edacc5a68c7..2de6586e3787 100644
--- a/tests/integration/test_database_iceberg/test.py
+++ b/tests/integration/test_database_iceberg/test.py
@@ -798,3 +798,26 @@ def test_cluster_joins(started_cluster):
     )
 
     assert res == "Jack\tBlack\nJack\tSilver\nJohn\tBlack\nJohn\tSilver\n"
+
+def test_gcs(started_cluster):
+    node = started_cluster.instances["node1"]
+
+    node.query("SYSTEM ENABLE FAILPOINT database_iceberg_gcs")
+    node.query(
+        f"""
+        DROP DATABASE IF EXISTS {CATALOG_NAME};
+        SET allow_database_iceberg = 1;
+        """
+    )
+
+    with pytest.raises(Exception) as err:
+        node.query(
+            f"""
+            CREATE DATABASE {CATALOG_NAME}
+            ENGINE = DataLakeCatalog('http://rest:8181/v1', 'gcs', 'dummy')
+            SETTINGS
+                catalog_type = 'rest',
+                warehouse = 'demo',
+            """
+        )
+        assert "Google cloud storage converts to S3" in str(err.value)