diff --git a/src/cmd/go/internal/cache/default.go b/src/cmd/go/internal/cache/default.go
index 0b1c1e0c20..426dddfb97 100644
--- a/src/cmd/go/internal/cache/default.go
+++ b/src/cmd/go/internal/cache/default.go
@@ -30,6 +30,7 @@ var (
 // README as a courtesy to explain where it came from.
 const cacheREADME = `This directory holds cached build artifacts from the Go build system.
 Run "go clean -cache" if the directory is getting too large.
+Run "go clean -fuzzcache" to delete the fuzz cache.
 See golang.org to learn more about Go.
 `