diff --git a/src/test/regress/pg_regress_multi.pl b/src/test/regress/pg_regress_multi.pl
index f22648d65..9b9546fa1 100755
--- a/src/test/regress/pg_regress_multi.pl
+++ b/src/test/regress/pg_regress_multi.pl
@@ -289,6 +289,7 @@ push(@pgOptions, '-c', "listen_addresses=${host}");
 # not required, and we don't necessarily have access to the default directory
 push(@pgOptions, '-c', "unix_socket_directories=");
 push(@pgOptions, '-c', "fsync=off");
+push(@pgOptions, '-c', "extra_float_digits=0");
 
 my $sharedPreloadLibraries = "citus";