diff --git a/tests/phpunit/tests/theme.php b/tests/phpunit/tests/theme.php
index d7e81db033..62cadb62b0 100644
--- a/tests/phpunit/tests/theme.php
+++ b/tests/phpunit/tests/theme.php
@@ -158,8 +158,8 @@ class Tests_Theme extends WP_UnitTestCase {
 				$this->assertFileIsReadable( $dir . $file );
 			}
 
-			$this->assertTrue( is_dir( $dir . $theme['Template Dir'] ) );
-			$this->assertTrue( is_dir( $dir . $theme['Stylesheet Dir'] ) );
+			$this->assertDirectoryExists( $dir . $theme['Template Dir'] );
+			$this->assertDirectoryExists( $dir . $theme['Stylesheet Dir'] );
 
 			$this->assertSame( 'publish', $theme['Status'] );