diff --git a/src/mdevaluate/pbc.py b/src/mdevaluate/pbc.py
index f7cfec6..771ffd6 100644
--- a/src/mdevaluate/pbc.py
+++ b/src/mdevaluate/pbc.py
@@ -179,7 +179,7 @@ def nojump(frame: CoordinateFrame, usecache: bool = True) -> CoordinateFrame:
 
 
 def pbc_points(
-    coordinates: CoordinateFrame,
+    coordinates: ArrayLike,
     box: Optional[NDArray] = None,
     thickness: Optional[float] = None,
     index: bool = False,