diff --git a/pkg/internal/sqlsmith/setup.go b/pkg/internal/sqlsmith/setup.go
index 9d6ddb0a61e6..045c84284b68 100644
--- a/pkg/internal/sqlsmith/setup.go
+++ b/pkg/internal/sqlsmith/setup.go
@@ -70,7 +70,9 @@ func randTables(r *rand.Rand) string {
 	stmts := rowenc.RandCreateTables(r, "table", r.Intn(5)+1,
 		mutations.ForeignKeyMutator,
 		mutations.StatisticsMutator,
-		mutations.PartialIndexMutator,
+		// TODO(mgartner): Re-enable the partial index mutator once it is aware
+		// that it should not mutate unique indexes on foreign key references.
+		// mutations.PartialIndexMutator,
 	)
 
 	for _, stmt := range stmts {