diff --git a/test/fixedbugs/issue16949.go b/test/fixedbugs/issue16949.go
new file mode 100644
index 0000000..9ee3387
--- /dev/null
+++ b/test/fixedbugs/issue16949.go
@@ -0,0 +1,30 @@
+// errorcheck
+
+// Copyright 2016 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.
+
+// Ensure that typed non-integer len and cap make arguments are not accepted.
+
+package main
+
+var sink []byte
+
+func main() {
+	sink = make([]byte, 1.0)
+	sink = make([]byte, float32(1.0)) // ERROR "non-integer.*len"
+	sink = make([]byte, float64(1.0)) // ERROR "non-integer.*len"
+
+	sink = make([]byte, 0, 1.0)
+	sink = make([]byte, 0, float32(1.0)) // ERROR "non-integer.*cap"
+	sink = make([]byte, 0, float64(1.0)) // ERROR "non-integer.*cap"
+
+	sink = make([]byte, 1+0i)
+	sink = make([]byte, complex64(1+0i))  // ERROR "non-integer.*len"
+	sink = make([]byte, complex128(1+0i)) // ERROR "non-integer.*len"
+
+	sink = make([]byte, 0, 1+0i)
+	sink = make([]byte, 0, complex64(1+0i))  // ERROR "non-integer.*cap"
+	sink = make([]byte, 0, complex128(1+0i)) // ERROR "non-integer.*cap"
+
+}