diff --git a/pkg/cmd/roachtest/tests/npgsql_blocklist.go b/pkg/cmd/roachtest/tests/npgsql_blocklist.go
index bd86f997e6bd..6217a45d64a4 100644
--- a/pkg/cmd/roachtest/tests/npgsql_blocklist.go
+++ b/pkg/cmd/roachtest/tests/npgsql_blocklist.go
@@ -661,6 +661,7 @@ var npgsqlBlocklist = blocklist{
 }
 
 var npgsqlIgnoreList = blocklist{
+	`Npgsql.Tests.CommandTests(NonMultiplexing).Cancel_async_soft`:                                   "flaky",
 	`Npgsql.Tests.ConnectionTests(Multiplexing).Fail_connect_then_succeed(True)`:                     "flaky",
 	`Npgsql.Tests.CopyTests(Multiplexing).Import_numeric`:                                            "flaky",
 	`Npgsql.Tests.CopyTests(Multiplexing).Import_string_array`:                                       "flaky",