diff --git a/src/Composer/Compiler.php b/src/Composer/Compiler.php
index e85329c6d..591132c7f 100644
--- a/src/Composer/Compiler.php
+++ b/src/Composer/Compiler.php
@@ -51,19 +51,19 @@ class Compiler
 
         $process = new ProcessExecutor();
 
-        if (0 !== $process->execute(['git', 'log', '--pretty=%H', '-n1', 'HEAD'], $output, __DIR__)) {
+        if (0 !== $process->execute(['git', 'log', '--pretty=%H', '-n1', 'HEAD'], $output, dirname(dirname(__DIR__)))) {
             throw new \RuntimeException('Can\'t run git log. You must ensure to run compile from composer git repository clone and that git binary is available.');
         }
         $this->version = trim($output);
 
-        if (0 !== $process->execute(['git', 'log', '-n1', '--pretty=%ci', 'HEAD'], $output, __DIR__)) {
+        if (0 !== $process->execute(['git', 'log', '-n1', '--pretty=%ci', 'HEAD'], $output, dirname(dirname(__DIR__)))) {
             throw new \RuntimeException('Can\'t run git log. You must ensure to run compile from composer git repository clone and that git binary is available.');
         }
 
         $this->versionDate = new \DateTime(trim($output));
         $this->versionDate->setTimezone(new \DateTimeZone('UTC'));
 
-        if (0 === $process->execute(['git', 'describe', '--tags', '--exact-match', 'HEAD'], $output, __DIR__)) {
+        if (0 === $process->execute(['git', 'describe', '--tags', '--exact-match', 'HEAD'], $output, dirname(dirname(__DIR__)))) {
             $this->version = trim($output);
         } else {
             // get branch-alias defined in composer.json for dev-main (if any)