diff --git a/__tests__/utils.test.ts b/__tests__/utils.test.ts
index 47374be0..21178c9d 100644
--- a/__tests__/utils.test.ts
+++ b/__tests__/utils.test.ts
@@ -126,12 +126,9 @@ describe('Utils tests', () => {
   });
 
   it('checking extensionArray', async () => {
-    expect(await utils.extensionArray('a, b, php_c, php-d')).toEqual([
-      'a',
-      'b',
-      'c',
-      'd'
-    ]);
+    expect(
+      await utils.extensionArray('a, :b, php_c, php-d, Zend e, :Zend f')
+    ).toEqual(['a', ':b', 'c', 'd', 'e', ':f']);
 
     expect(await utils.extensionArray('')).toEqual([]);
     expect(await utils.extensionArray(' ')).toEqual([]);
diff --git a/dist/index.js b/dist/index.js
index 777c92f3..ee3457b1 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -1050,7 +1050,7 @@ async function extensionArray(extension_csv) {
                 return extension
                     .trim()
                     .toLowerCase()
-                    .replace(/^php[-_]/, '');
+                    .replace(/^(:)?(php[-_]|zend )/, '$1');
             })
                 .filter(Boolean);
     }
diff --git a/src/utils.ts b/src/utils.ts
index 2f47cb81..9ca471a5 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -289,7 +289,7 @@ export async function extensionArray(
           return extension
             .trim()
             .toLowerCase()
-            .replace(/^php[-_]/, '');
+            .replace(/^(:)?(php[-_]|zend )/, '$1');
         })
         .filter(Boolean);
   }