diff --git a/tests/SapphireTest.php b/tests/SapphireTest.php
index 7e7abf2c3..bd6a3380d 100644
--- a/tests/SapphireTest.php
+++ b/tests/SapphireTest.php
@@ -33,7 +33,7 @@ require_once(MANIFEST_FILE);
 $hasPhpUnit = false;
 $paths = explode(PATH_SEPARATOR, ini_get('include_path'));
 foreach($paths as $path) {
-	if(file_exists("$path/PHPUnit/Framework.php")) $hasPhpUnit = true;
+	if(@file_exists("$path/PHPUnit/Framework.php")) $hasPhpUnit = true;
 }
 
 if($hasPhpUnit) {
diff --git a/tests/TestRunner.php b/tests/TestRunner.php
index 5dd0313ef..d702cc9e7 100644
--- a/tests/TestRunner.php
+++ b/tests/TestRunner.php
@@ -4,7 +4,7 @@
 $hasPhpUnit = false;
 $paths = explode(PATH_SEPARATOR, ini_get('include_path'));
 foreach($paths as $path) {
-	if(file_exists("$path/PHPUnit/Framework.php")) $hasPhpUnit = true;
+	if(@file_exists("$path/PHPUnit/Framework.php")) $hasPhpUnit = true;
 }
 
 if($hasPhpUnit) {