diff --git a/tests/phpunit/tests/image/intermediate_size.php b/tests/phpunit/tests/image/intermediate_size.php
index 3cb8a50f80..ced46e009f 100644
--- a/tests/phpunit/tests/image/intermediate_size.php
+++ b/tests/phpunit/tests/image/intermediate_size.php
@@ -5,6 +5,14 @@
  * @group upload
  */
 class Tests_Image_Intermediate_Size extends WP_UnitTestCase {
+
+	function setUp() {
+		parent::setUp();
+		if ( ! extension_loaded( 'imagick' ) ) {
+			$this->fail( 'The Imagick extension is not installed.' );
+		}
+	}
+
 	function tearDown() {
 		$this->remove_added_uploads();
 		parent::tearDown();