diff --git a/src/test/regress/input/publication.source b/src/test/regress/input/publication.source
index c1a6cc100..06ba196d7 100644
--- a/src/test/regress/input/publication.source
+++ b/src/test/regress/input/publication.source
@@ -125,5 +125,6 @@ create publication pub_test for all tables;
 select * from pg_publication_tables where tablename like 'BIN$%';
 
 purge table t_ustore_test1;
+drop publication pub_test;
 
 \! @abs_bindir@/gs_guc reload -D @abs_srcdir@/tmp_check/datanode1/ -c "enable_recyclebin = off" > /dev/null 2>&1
diff --git a/src/test/regress/output/publication.source b/src/test/regress/output/publication.source
index b7d10a706..fed786001 100644
--- a/src/test/regress/output/publication.source
+++ b/src/test/regress/output/publication.source
@@ -263,4 +263,5 @@ select * from pg_publication_tables where tablename like 'BIN$%';
 (0 rows)
 
 purge table t_ustore_test1;
+drop publication pub_test;
 \! @abs_bindir@/gs_guc reload -D @abs_srcdir@/tmp_check/datanode1/ -c "enable_recyclebin = off" > /dev/null 2>&1