diff --git a/examples/ggwave-wasm/index-tmpl.html b/examples/ggwave-wasm/index-tmpl.html
index ddc7ae3..1bec239 100644
--- a/examples/ggwave-wasm/index-tmpl.html
+++ b/examples/ggwave-wasm/index-tmpl.html
@@ -142,7 +142,7 @@
             }
 
             function selectConfig(configId) {
-                protocolId = configId;
+                protocolId = parseInt(configId);
             }
 
             function updateScroll(sName) {