diff --git a/examples/pipeline/in_to_out_python/check_linux.sh b/examples/pipeline/in_to_out_python/check_linux.sh
index 5b0bc11959845e986e6893d655a22fcb4b559860..0bde6257fcadd0bb8d1339de23120fa249d21fac 100644
--- a/examples/pipeline/in_to_out_python/check_linux.sh
+++ b/examples/pipeline/in_to_out_python/check_linux.sh
@@ -61,8 +61,8 @@ cat out | grep "Sent 5 file(s)"
 cat out | grep bt_meta
 cat out | grep st_meta
 
-echo "db.data_default.find({"time_id":1})" | mongo ${outdatabase_name}
-echo "db.data_default.find({"time_id":1})" | mongo ${outdatabase_name} | tee /dev/stderr | grep "file1_${data_source_out}"
+echo "db.data_default.find({"_id":1})" | mongo ${outdatabase_name}
+echo "db.data_default.find({"_id":1})" | mongo ${outdatabase_name} | tee /dev/stderr | grep "file1_${data_source_out}"
 
 cat ${receiver_folder}/processed/file1_${data_source_out} | grep hello1
 cat ${receiver_folder}/processed/file2_${data_source_out} | grep hello2