diff --git a/__tests__/Str-test.js b/__tests__/Str-test.js
index e91c0d5c..463ee3df 100644
--- a/__tests__/Str-test.js
+++ b/__tests__/Str-test.js
@@ -102,7 +102,8 @@ describe('Str.sanitizeURL', () => {
         expect(Str.sanitizeURL('google.com')).toBe('https://google.com');
         expect(Str.sanitizeURL('Https://google.com')).toBe('https://google.com');
         expect(Str.sanitizeURL('https://GOOgle.com')).toBe('https://google.com');
-        expect(Str.sanitizeURL('FOO.com/blah_BLAH')).toBe('https://foo.com/blah_BLAH');
+        +expect(Str.sanitizeURL('FOO.com/blah_BLAH', 'http')).toBe('http://foo.com/blah_BLAH');
+        +expect(Str.sanitizeURL('example.com', 'http')).toBe('http://example.com');
         expect(Str.sanitizeURL('http://FOO.com/blah_BLAH')).toBe('http://foo.com/blah_BLAH');
         expect(Str.sanitizeURL('HTtp://FOO.com/blah_BLAH')).toBe('http://foo.com/blah_BLAH');
     });
diff --git a/lib/str.ts b/lib/str.ts
index 2c367730..d32fbfa9 100644
--- a/lib/str.ts
+++ b/lib/str.ts
@@ -971,15 +971,16 @@ const Str = {
      *  Formats a URL by converting the domain name to lowercase and adding the missing 'https://' protocol.
      *
      * @param url The URL to be formatted
+     * @param scheme The Scheme to use in the URL
      * @returns The formatted URL
      */
-    sanitizeURL(url: string): string {
+    sanitizeURL(url: string, scheme = 'https'): string {
         const regex = new RegExp(`^${UrlPatterns.URL_REGEX}$`, 'i');
         const match = regex.exec(url);
         if (!match) {
             return url;
         }
-        const website = match[3] ? match[2] : `https://${match[2]}`;
+        const website = match[3] ? match[2] : `${scheme}://${match[2]}`;
         return website.toLowerCase() + this.cutBefore(match[1], match[2]);
     },