diff --git a/lslopt/lsloptimizer.py b/lslopt/lsloptimizer.py
index 88016a4..c53f5dd 100644
--- a/lslopt/lsloptimizer.py
+++ b/lslopt/lsloptimizer.py
@@ -18,7 +18,6 @@
 # Optimizer class that wraps and calls the other parts.
 
 import lslfuncs
-from lslcommon import Key, Vector, Quaternion
 
 from lslfoldconst import foldconst
 from lslrenamer import renamer