diff --git a/src/internal/fuzz/coverage.go b/src/internal/fuzz/coverage.go
new file mode 100644
index 0000000000..7624b56e0a
--- /dev/null
+++ b/src/internal/fuzz/coverage.go
@@ -0,0 +1,11 @@
+// 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.
+
+package fuzz
+
+// coverage returns a []byte containing unique 8-bit counters for each edge of
+// the instrumented source code. This coverage data will only be generated if
+// `-d=libfuzzer` is set at build time. This can be used to understand the code
+// coverage of a test execution.
+func coverage() []byte { return nil }