diff --git a/GnuPG/__init__.py b/GnuPG/__init__.py
index b20c3d8..8bcfebd 100644
--- a/GnuPG/__init__.py
+++ b/GnuPG/__init__.py
@@ -102,7 +102,7 @@ def confirm_key( content, email ):
 
 # adds a key and ensures it has the given email address
 def add_key( keyhome, content ):
-	p = subprocess.Popen( ['/usr/bin/gpg', '--homedir', keyhome, '--import', '--batch'], stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE )
+	p = subprocess.Popen( build_command(keyhome, '--import', '--batch'), stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE )
 	p.communicate(input=content)
 	p.wait()