diff --git a/index.html b/index.html
index 8dff15a..9861813 100644
--- a/index.html
+++ b/index.html
@@ -459,7 +459,7 @@
 			<section class="sub-section">
 				<button type="button" class="generate-button" onclick="outputString()">Generate code</button>
 				<button type="button" id = "copy-button" onclick="copyOutput()">Copy Output</button>
-				<button type="button" id = "download-button" onclick="downloadFile()">Download as binary file</button>
+				<button type="button" id = "download-button" onclick="downloadFile()">Download as binary file (.bin)</button>
 				<textarea id="code-output" class="code-output"></textarea>
 			</section>
 		</section>