diff --git a/src/cmd/compile/internal/noder/noder.go b/src/cmd/compile/internal/noder/noder.go
index 7c14fcf041..2e7b636681 100644
--- a/src/cmd/compile/internal/noder/noder.go
+++ b/src/cmd/compile/internal/noder/noder.go
@@ -36,7 +36,7 @@ func LoadPackage(filenames []string) {
 
 	mode := syntax.CheckBranches
 	if supportsGenerics {
-		mode |= syntax.AllowGenerics
+		mode |= syntax.AllowGenerics | syntax.AllowTypeSets
 	}
 
 	// Limit the number of simultaneously open files.
diff --git a/src/go/internal/gcimporter/gcimporter_test.go b/src/go/internal/gcimporter/gcimporter_test.go
index 3a9ed79df6..825f735db9 100644
--- a/src/go/internal/gcimporter/gcimporter_test.go
+++ b/src/go/internal/gcimporter/gcimporter_test.go
@@ -165,8 +165,9 @@ func TestImportTypeparamTests(t *testing.T) {
 	}
 
 	skip := map[string]string{
-		"equal.go":  "inconsistent embedded sorting", // TODO(rfindley): investigate this.
-		"nested.go": "fails to compile",              // TODO(rfindley): investigate this.
+		"equal.go":      "inconsistent embedded sorting", // TODO(rfindley): investigate this.
+		"nested.go":     "fails to compile",              // TODO(rfindley): investigate this.
+		"issue48424.go": "go/types support missing",      // TODO: need to implement this if #48424 is accepted
 	}
 
 	for _, entry := range list {
diff --git a/test/typeparam/issue48424.go b/test/typeparam/issue48424.go
new file mode 100644
index 0000000000..b1238df697
--- /dev/null
+++ b/test/typeparam/issue48424.go
@@ -0,0 +1,54 @@
+// run
+
+// Copyright 2021 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Smoke test for constraint literals with elided interface
+// per issue #48424.
+
+package main
+
+func identity[T int](x T) T {
+	return x
+}
+
+func min[T int|string](x, y T) T {
+	if x < y {
+		return x
+	}
+	return y
+}
+
+func max[T ~float64](x, y T) T {
+	if x > y {
+		return x
+	}
+	return y
+}
+
+func main() {
+	if identity(1) != 1 {
+		panic("identity(1) failed")
+	}
+
+	if min(2, 3) != 2 {
+		panic("min(2, 3) failed")
+	}
+
+	if min("foo", "bar") != "bar" {
+		panic(`min("foo", "bar") failed`)
+	}
+
+	if max(2, 3) != 3 {
+		panic("max(2, 3) failed")
+	}
+}
+
+// Some random type parameter lists with elided interfaces.
+
+type (
+	_ [T struct{}] struct{}
+	_ [M map[K]V, K comparable, V any] struct{}
+	_ [_ interface{}|int] struct{}
+)