diff --git a/README.md b/README.md
index 9710a5b..e959e81 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@ pdfio - PDF Read/Write Library
 
 ![Version](https://img.shields.io/github/v/release/michaelrsweet/pdfio?include_prereleases)
 ![Apache 2.0](https://img.shields.io/github/license/michaelrsweet/pdfio)
-[![Build Status](https://img.shields.io/github/workflow/status/michaelrsweet/pdfio/Build)](https://github.com/michaelrsweet/pdfio/actions/workflows/build.yml)
+[![Build Status](https://img.shields.io/github/workflow/status/michaelrsweet/pdfio/build.yml?branch=master)](https://github.com/michaelrsweet/pdfio/actions/workflows/build.yml)
 [![Coverity Scan Status](https://img.shields.io/coverity/scan/22385.svg)](https://scan.coverity.com/projects/michaelrsweet-pdfio)
 
 PDFio is a simple C library for reading and writing PDF files.  The primary