diff --git a/tests/queries/0_stateless/02434_cancel_insert_when_client_dies.sh b/tests/queries/0_stateless/02434_cancel_insert_when_client_dies.sh
index 85aa992d98c..2b27d88f23c 100755
--- a/tests/queries/0_stateless/02434_cancel_insert_when_client_dies.sh
+++ b/tests/queries/0_stateless/02434_cancel_insert_when_client_dies.sh
@@ -47,7 +47,7 @@ function thread_insert
 {
     # supress "Killed" messages from bash
     while true; do
-        export ID="$TEST_MARK$RANDOM"
+        export ID="$TEST_MARK$RANDOM-$RANDOM-$RANDOM"
         bash -c insert_data 2>&1| grep -Fav "Killed"
     done
 }
diff --git a/tests/queries/0_stateless/02435_rollback_cancelled_queries.sh b/tests/queries/0_stateless/02435_rollback_cancelled_queries.sh
index e4aec6503a4..640975f1ef7 100755
--- a/tests/queries/0_stateless/02435_rollback_cancelled_queries.sh
+++ b/tests/queries/0_stateless/02435_rollback_cancelled_queries.sh
@@ -61,7 +61,7 @@ function thread_insert
 {
     # supress "Killed" messages from bash
     while true; do
-        export ID="$TEST_MARK$RANDOM"
+        export ID="$TEST_MARK$RANDOM-$RANDOM-$RANDOM"
         bash -c insert_data 2>&1| grep -Fav "Killed" | grep -Fav "SESSION_IS_LOCKED" | grep -Fav "SESSION_NOT_FOUND"
     done
 }