diff --git a/lib/index.js b/lib/index.js
index 7e2c384..0eecf99 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -394,8 +394,10 @@ Channel.from = (values, mapfn, thisArg) => {
 
 Channel.of = (...values) => Channel.from(values);
 
-Channel.isChannel = arg =>
-  arg !== undefined && arg !== null && Object.getPrototypeOf(arg) === prototype;
+Channel.isChannel = value =>
+  value !== undefined &&
+  value !== null &&
+  Object.getPrototypeOf(value) === prototype;
 
 Channel.select = methodPromises => {
   if (!Array.isArray(methodPromises)) {