diff --git a/PHPCI/Builder.php b/PHPCI/Builder.php
index 904aa506..d911e04b 100644
--- a/PHPCI/Builder.php
+++ b/PHPCI/Builder.php
@@ -296,6 +296,8 @@ class Builder implements LoggerAwareInterface
             PHPCI_URL
         );
 
+        $this->commandExecutor->setBuildPath($this->buildPath);
+
         // Create a working copy of the project:
         if (!$this->build->createWorkingCopy($this, $this->buildPath)) {
             throw new \Exception(Lang::get('could_not_create_working'));
diff --git a/PHPCI/Helper/BaseCommandExecutor.php b/PHPCI/Helper/BaseCommandExecutor.php
index 28247ebc..4c2f1fa8 100644
--- a/PHPCI/Helper/BaseCommandExecutor.php
+++ b/PHPCI/Helper/BaseCommandExecutor.php
@@ -62,9 +62,7 @@ abstract class BaseCommandExecutor implements CommandExecutor
         $this->logger = $logger;
         $this->quiet = $quiet;
         $this->verbose = $verbose;
-
         $this->lastOutput = array();
-
         $this->rootDir = $rootDir;
     }
 
@@ -92,7 +90,7 @@ abstract class BaseCommandExecutor implements CommandExecutor
 
         $pipes = array();
 
-        $process = proc_open($command, $descriptorSpec, $pipes, dirname($this->buildPath), null);
+        $process = proc_open($command, $descriptorSpec, $pipes, $this->buildPath, null);
 
         if (is_resource($process)) {
             fclose($pipes[0]);
@@ -219,4 +217,13 @@ abstract class BaseCommandExecutor implements CommandExecutor
         }
         return null;
     }
+
+    /**
+     * Set the buildPath property.
+     * @param string $path
+     */
+    public function setBuildPath($path)
+    {
+        $this->buildPath = $path;
+    }
 }
diff --git a/PHPCI/Helper/CommandExecutor.php b/PHPCI/Helper/CommandExecutor.php
index d83f0c6b..bacd1a2e 100644
--- a/PHPCI/Helper/CommandExecutor.php
+++ b/PHPCI/Helper/CommandExecutor.php
@@ -30,4 +30,10 @@ interface CommandExecutor
      * @return null|string
      */
     public function findBinary($binary, $buildPath = null);
+
+    /**
+     * Set the buildPath property.
+     * @param string $path
+     */
+    public function setBuildPath($path);
 }