diff --git a/src/Client.ts b/src/Client.ts
index ac8a76831..398bd5bcd 100644
--- a/src/Client.ts
+++ b/src/Client.ts
@@ -16,7 +16,7 @@ import { HTTPClient } from "./HTTPClient";
 import { HTTPClientFactory } from "./HTTPClientFactory";
 import { ClientOptions } from "./IClientOptions";
 import { Options } from "./IOptions";
-import { validatePolyFilling } from "./ValidatePolyFilling";
+import { validatePolyfilling } from "./ValidatePolyfilling";
 
 export class Client {
 	/**
@@ -70,7 +70,7 @@ export class Client {
 	 * @param {ClientOptions} clientOptions - The options to instantiate the client object
 	 */
 	private constructor(clientOptions: ClientOptions) {
-		validatePolyFilling();
+		validatePolyfilling();
 		for (const key in clientOptions) {
 			if (Object.prototype.hasOwnProperty.call(clientOptions, key)) {
 				this.config[key] = clientOptions[key];
diff --git a/src/ValidatePolyFilling.ts b/src/ValidatePolyFilling.ts
index 53ec11823..464cec9f4 100644
--- a/src/ValidatePolyFilling.ts
+++ b/src/ValidatePolyFilling.ts
@@ -12,18 +12,18 @@
  * @returns The true in case the Promise and fetch available, otherwise throws error
  */
 
-export const validatePolyFilling = (): boolean => {
+export const validatePolyfilling = (): boolean => {
 	if (typeof Promise === "undefined" && typeof fetch === "undefined") {
-		const error = new Error("Library cannot function without Promise and fetch. So, please provide polyfill for them.");
-		error.name = "PolyFillNotAvailable";
+		const error = new Error("Library cannot function without Promise and fetch. So, please provide a polyfill for them.");
+		error.name = "PolyfillNotAvailable";
 		throw error;
 	} else if (typeof Promise === "undefined") {
-		const error = new Error("Library cannot function without Promise. So, please provide polyfill for it.");
-		error.name = "PolyFillNotAvailable";
+		const error = new Error("Library cannot function without Promise. So, please provide a polyfill for it.");
+		error.name = "PolyfillNotAvailable";
 		throw error;
 	} else if (typeof fetch === "undefined") {
-		const error = new Error("Library cannot function without fetch. So, please provide polyfill for it.");
-		error.name = "PolyFillNotAvailable";
+		const error = new Error("Library cannot function without fetch. So, please provide a polyfill for it.");
+		error.name = "PolyfillNotAvailable";
 		throw error;
 	}
 	return true;