diff --git a/test/bugs/bug187.go b/test/bugs/bug187.go
new file mode 100644
index 0000000000..8e7e14a872
--- /dev/null
+++ b/test/bugs/bug187.go
@@ -0,0 +1,19 @@
+// Copyright 2009 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.
+
+// $G $D/$F.go && $L $F.$A && ./$A.out
+
+package main
+
+func main() {
+	// This bug doesn't arise with [...]int, or []interface{} or [3]interface{}.
+	a := [...]interface{} { 1, 2, 3 };
+	n := 0;
+	for _, v := range a {
+		if v.(int) != n {
+			panicln("BUG:", n, v.(int));
+		}
+		n++;
+	}
+}
diff --git a/test/golden.out b/test/golden.out
index 9875907dc6..16c16bbe5a 100644
--- a/test/golden.out
+++ b/test/golden.out
@@ -153,3 +153,10 @@ BUG: should fail
 
 =========== bugs/bug169.go
 BUG: errchk: command succeeded unexpectedly
+
+=========== bugs/bug187.go
+BUG: 0 1
+SIGSEGV: segmentation violation
+Faulting address: 0x40a1f0
+PC=0x40a1f0
+