diff --git a/regression-test/suites/fault_injection_p0/test_full_compaction_with_ordered_data.groovy b/regression-test/suites/fault_injection_p0/test_full_compaction_with_ordered_data.groovy
index 23865019561e8e..6d741ddfedd713 100644
--- a/regression-test/suites/fault_injection_p0/test_full_compaction_with_ordered_data.groovy
+++ b/regression-test/suites/fault_injection_p0/test_full_compaction_with_ordered_data.groovy
@@ -60,7 +60,7 @@ suite("test_full_compaction_with_ordered_data","nonConcurrent") {
         int rowsetCount = 0
         for (def tablet in tablets) {
             String tablet_id = tablet.TabletId
-            (code, out, err) = curl("GET", tablet.CompactionStatus)
+            def (code, out, err) = curl("GET", tablet.CompactionStatus)
             logger.info("Show tablets status: code=" + code + ", out=" + out + ", err=" + err)
             assertEquals(code, 0)
             def tabletJson = parseJson(out.trim())
@@ -76,7 +76,7 @@ suite("test_full_compaction_with_ordered_data","nonConcurrent") {
         rowsetCount = 0
         for (def tablet in tablets) {
             String tablet_id = tablet.TabletId
-            (code, out, err) = curl("GET", tablet.CompactionStatus)
+            def (code, out, err) = curl("GET", tablet.CompactionStatus)
             logger.info("Show tablets status: code=" + code + ", out=" + out + ", err=" + err)
             assertEquals(code, 0)
             def tabletJson = parseJson(out.trim())
@@ -132,7 +132,7 @@ suite("test_full_compaction_with_ordered_data","nonConcurrent") {
         rowsetCount = 0
         for (def tablet in tablets) {
             String tablet_id = tablet.TabletId
-            (code, out, err) = curl("GET", tablet.CompactionStatus)
+            def (code, out, err) = curl("GET", tablet.CompactionStatus)
             logger.info("Show tablets status: code=" + code + ", out=" + out + ", err=" + err)
             assertEquals(code, 0)
             def tabletJson = parseJson(out.trim())
diff --git a/regression-test/suites/fault_injection_p2/test_partial_update_rowset_not_found_fault_injection.groovy b/regression-test/suites/fault_injection_p2/test_partial_update_rowset_not_found_fault_injection.groovy
index befad64da0a3bf..39344550526aae 100644
--- a/regression-test/suites/fault_injection_p2/test_partial_update_rowset_not_found_fault_injection.groovy
+++ b/regression-test/suites/fault_injection_p2/test_partial_update_rowset_not_found_fault_injection.groovy
@@ -94,8 +94,8 @@ suite("test_partial_update_rowset_not_found_fault_injection", "p2,nonConcurrent"
         def tablets = sql_return_maparray """ show tablets from ${testTable}; """
         for (def tablet in tablets) {
             String tablet_id = tablet.TabletId
-            backend_id = tablet.BackendId
-            (code, out, err) = be_run_cumulative_compaction(backendId_to_backendIP.get(backend_id), backendId_to_backendHttpPort.get(backend_id), tablet_id)
+            def backend_id = tablet.BackendId
+            def (code, out, err) = be_run_cumulative_compaction(backendId_to_backendIP.get(backend_id), backendId_to_backendHttpPort.get(backend_id), tablet_id)
             logger.info("Run compaction: code=" + code + ", out=" + out + ", err=" + err)
             assertEquals(code, 0)
         }