diff --git a/PHPCI/Controller/PluginController.php b/PHPCI/Controller/PluginController.php
index 45aed22f..c4910f34 100644
--- a/PHPCI/Controller/PluginController.php
+++ b/PHPCI/Controller/PluginController.php
@@ -76,7 +76,10 @@ class PluginController extends \PHPCI\Controller
             $this->setComposerJson($json);
 
             if ($this->canInstall) {
-                shell_exec('COMPOSER_HOME='.APPLICATION_PATH . ' ' . $this->composerPath . ' update --working-dir=' . APPLICATION_PATH . ' > /' . APPLICATION_PATH . '/phpci_composer_remove.log  2>&1 &');
+                $home = 'COMPOSER_HOME='.APPLICATION_PATH . ' ';
+                $action = ' update --working-dir=' . APPLICATION_PATH;
+                $toLog = APPLICATION_PATH . '/phpci_composer_remove.log  2>&1 &';
+                shell_exec($home . $this->composerPath . $action . ' > /' . $toLog);
             }
 
             header('Location: ' . PHPCI_URL . 'plugin?r=' . $package);
@@ -101,7 +104,10 @@ class PluginController extends \PHPCI\Controller
         $this->setComposerJson($json);
 
         if ($this->canInstall) {
-            shell_exec('COMPOSER_HOME='.APPLICATION_PATH . ' ' . $this->composerPath . ' update --working-dir=' . APPLICATION_PATH . ' > /' . APPLICATION_PATH . '/phpci_composer_install.log 2>&1 &');
+            $home = 'COMPOSER_HOME='.APPLICATION_PATH . ' ';
+            $action = ' update --working-dir=' . APPLICATION_PATH;
+            $toLog = ' > /' . APPLICATION_PATH . '/phpci_composer_install.log 2>&1 &';
+            shell_exec($home . $this->composerPath . $action . $toLog);
 
             header('Location: ' . PHPCI_URL . 'plugin?i=' . $package);
             die;