diff --git a/.travis.yml b/.travis.yml
index 28b51cb..a4a6196 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,6 +9,7 @@ php:
 
 matrix:
   allow_failures:
+    - php: 5.3
     - php: 5.6
     - php: hhvm
 
diff --git a/src/Curl/Curl.php b/src/Curl/Curl.php
index 27e947e..aa20126 100644
--- a/src/Curl/Curl.php
+++ b/src/Curl/Curl.php
@@ -204,7 +204,7 @@ class Curl
     public function setCookie($key, $value)
     {
         $this->cookies[$key] = $value;
-        $this->setOpt(CURLOPT_COOKIE, http_build_query($this->cookies, '', '; ', PHP_QUERY_RFC3986));
+        $this->setOpt(CURLOPT_COOKIE, str_replace('+', '%20', http_build_query($this->cookies, '', '; ')));
     }
 
     public function setCookieFile($cookie_file)
diff --git a/tests/PHPCurlClass/PHPCurlClassTest.php b/tests/PHPCurlClass/PHPCurlClassTest.php
index b8971a4..1d800f7 100644
--- a/tests/PHPCurlClass/PHPCurlClassTest.php
+++ b/tests/PHPCurlClass/PHPCurlClassTest.php
@@ -8,9 +8,10 @@ use \Helper\Test;
 
 class CurlTest extends PHPUnit_Framework_TestCase
 {
-    public function testExtensionLoaded()
+    public function testExtensionsLoaded()
     {
         $this->assertTrue(extension_loaded('curl'));
+        $this->assertTrue(extension_loaded('gd'));
     }
 
     public function testArrayAssociative()
diff --git a/tests/before_script.sh b/tests/before_script.sh
index 9dae6d3..ac23bba 100644
--- a/tests/before_script.sh
+++ b/tests/before_script.sh
@@ -1,4 +1,28 @@
-if [[ "${TRAVIS_PHP_VERSION}" == "5.4" ]]; then
+if [[ "${TRAVIS_PHP_VERSION}" == "5.3" ]]; then
+    sudo add-apt-repository -y ppa:nginx/stable
+    sudo apt-get update
+    sudo apt-get install -y nginx
+    sudo apt-get install -y php5-fpm
+    root="$(pwd)/tests/PHPCurlClass"
+    sudo tee /etc/nginx/sites-enabled/default <<EOF
+server {
+    listen 8000 default_server;
+    root ${root};
+    index index.php;
+    server_name localhost;
+    location / {
+        try_files \$uri \$uri/ /index.php =404;
+    }
+    location ~ \.php$ {
+        fastcgi_split_path_info ^(.+\.php)(/.+)$;
+        fastcgi_pass 127.0.0.1:9000;
+        fastcgi_index index.php;
+        include fastcgi_params;
+    }
+}
+EOF
+    sudo /etc/init.d/nginx restart
+elif [[ "${TRAVIS_PHP_VERSION}" == "5.4" ]]; then
     php -S 127.0.0.1:8000 -t tests/PHPCurlClass/ &
 elif [[ "${TRAVIS_PHP_VERSION}" == "5.5" ]]; then
     php -S 127.0.0.1:8000 -t tests/PHPCurlClass/ &
diff --git a/tests/script.sh b/tests/script.sh
index 44f46ac..a6258b0 100644
--- a/tests/script.sh
+++ b/tests/script.sh
@@ -1,5 +1,2 @@
 find . -type "f" -iname "*.php" | xargs -L "1" php -l
-
-if [[ "${TRAVIS_PHP_VERSION}" != "5.3" ]]; then
-    cd tests && phpunit --configuration phpunit.xml
-fi
+cd tests && phpunit --configuration phpunit.xml