diff --git a/tests/Functional/Net/SCPSSH2UserStoryTest.php b/tests/Functional/Net/SCPSSH2UserStoryTest.php
index 3697dcf6..295e982f 100644
--- a/tests/Functional/Net/SCPSSH2UserStoryTest.php
+++ b/tests/Functional/Net/SCPSSH2UserStoryTest.php
@@ -14,11 +14,6 @@ class Functional_Net_SCPSSH2UserStoryTest extends PhpseclibFunctionalTestCase
 
     static public function setUpBeforeClass()
     {
-        if (getenv('TRAVIS') && version_compare(PHP_VERSION, '5.3.0', '<')) {
-            self::markTestIncomplete(
-                'This test fails on Travis CI on PHP 5.2 due to requiring GMP.'
-            );
-        }
         parent::setUpBeforeClass();
         self::$remoteFile = uniqid('phpseclib-scp-ssh2-') . '.txt';
         self::$exampleData = str_repeat('abscp12345', 1000);
diff --git a/tests/PhpseclibFunctionalTestCase.php b/tests/PhpseclibFunctionalTestCase.php
index 588d7d89..5575c970 100644
--- a/tests/PhpseclibFunctionalTestCase.php
+++ b/tests/PhpseclibFunctionalTestCase.php
@@ -10,7 +10,21 @@ abstract class PhpseclibFunctionalTestCase extends PhpseclibTestCase
     static public function setUpBeforeClass()
     {
         if (extension_loaded('runkit')) {
-            self::ensureConstant('MATH_BIGINTEGER_MODE', MATH_BIGINTEGER_MODE_GMP);
+            if (extension_loaded('gmp')) {
+                self::ensureConstant(
+                    'MATH_BIGINTEGER_MODE',
+                    MATH_BIGINTEGER_MODE_GMP
+                );
+            } elseif (extension_loaded('bcmath')) {
+                self::ensureConstant(
+                    'MATH_BIGINTEGER_MODE',
+                    MATH_BIGINTEGER_MODE_BCMATH
+                );
+            } else {
+                self::markTestSkipped(
+                    'Should have gmp or bcmath extension for functional test.'
+                );
+            }
             self::ensureConstant('CRYPT_HASH_MODE', CRYPT_HASH_MODE_HASH);
             self::reRequireFile('Math/BigInteger.php');
             self::reRequireFile('Crypt/Hash.php');