diff --git a/src/test/regress/bin/normalize.sed b/src/test/regress/bin/normalize.sed
index 62e9de697..2a10c1afb 100644
--- a/src/test/regress/bin/normalize.sed
+++ b/src/test/regress/bin/normalize.sed
@@ -309,3 +309,5 @@ s/permission denied to terminate process/must be a superuser to terminate superu
 s/permission denied to cancel query/must be a superuser to cancel superuser query/g
 
 #endif /* PG_VERSION_NUM < PG_VERSION_16 */
+
+s/\| CHECK ([a-zA-Z])(.*)/| CHECK \(\1\2\)/g