diff --git a/cmd/heapview/main.go b/cmd/heapview/main.go
index 5fab790a..b65f52ad 100644
--- a/cmd/heapview/main.go
+++ b/cmd/heapview/main.go
@@ -39,7 +39,7 @@ func toolsDir() string {
 		log.Println("error: GOPATH not set. Can't find client files")
 		os.Exit(1)
 	}
-	return filepath.Join(filepath.SplitList(gopath)[0], "/src/golang.org/x/tools")
+	return filepath.Join(filepath.SplitList(gopath)[0], "src/golang.org/x/tools")
 }
 
 var parseFlags = func() {