diff --git a/src/cmd/compile/internal/gc/sinit.go b/src/cmd/compile/internal/gc/sinit.go
index 92cf51e345..aa0c06c564 100644
--- a/src/cmd/compile/internal/gc/sinit.go
+++ b/src/cmd/compile/internal/gc/sinit.go
@@ -650,8 +650,6 @@ func getdyn(n *Node, top bool) initGenType {
 // isStaticCompositeLiteral reports whether n is a compile-time constant.
 func isStaticCompositeLiteral(n *Node) bool {
 	switch n.Op {
-	case ONAME:
-		return n.Class() == PEXTERN && n.Name != nil && n.Name.Readonly()
 	case OSLICELIT:
 		return false
 	case OARRAYLIT:
diff --git a/test/fixedbugs/issue31782.go b/test/fixedbugs/issue31782.go
new file mode 100644
index 0000000000..a42001ea0e
--- /dev/null
+++ b/test/fixedbugs/issue31782.go
@@ -0,0 +1,24 @@
+// run
+
+// Copyright 2019 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.
+
+// Check static composite literal reports wrong for struct
+// field.
+
+package main
+
+type one struct {
+	i interface{}
+}
+
+type two struct {
+	i interface{}
+	s []string
+}
+
+func main() {
+	o := one{i: two{i: 42}.i}
+	println(o.i.(int))
+}
diff --git a/test/fixedbugs/issue31782.out b/test/fixedbugs/issue31782.out
new file mode 100644
index 0000000000..d81cc0710e
--- /dev/null
+++ b/test/fixedbugs/issue31782.out
@@ -0,0 +1 @@
+42