diff --git a/tools/debpydep.py b/tools/debpydep.py
index ae1a60fe..10cef35d 100755
--- a/tools/debpydep.py
+++ b/tools/debpydep.py
@@ -28,7 +28,7 @@ for root, dirs, files in os.walk(sys.argv[1]):
 for f in selection:
     f = f.replace('.pyc', '.py')
     try:
-        f = os.readlink(f)
+        f = os.path.abspath(os.path.join(os.path.split(f)[0], os.readlink(f)))
     except OSError:
         pass