diff --git a/src/test/regress/expected/copy2.out b/src/test/regress/expected/copy2.out
index 524e88cbae6..99fba57a9e0 100644
--- a/src/test/regress/expected/copy2.out
+++ b/src/test/regress/expected/copy2.out
@@ -197,6 +197,11 @@ COPY testnl FROM stdin CSV;
 -- test end of copy marker
 CREATE TEMP TABLE testeoc (a text);
 COPY testeoc FROM stdin CSV;
+COPY testeoc TO stdout CSV;
+a\.
+\.b
+c\.d
+"\."
 DROP TABLE x, y;
 DROP FUNCTION fn_x_before();
 DROP FUNCTION fn_x_after();
diff --git a/src/test/regress/sql/copy2.sql b/src/test/regress/sql/copy2.sql
index d962d2e048e..5d73256c122 100644
--- a/src/test/regress/sql/copy2.sql
+++ b/src/test/regress/sql/copy2.sql
@@ -149,6 +149,7 @@ c\.d
 "\."
 \.
 
+COPY testeoc TO stdout CSV;
 
 DROP TABLE x, y;
 DROP FUNCTION fn_x_before();