diff --git a/python/hccd/path_tracker.py b/python/hccd/path_tracker.py
index 1013ad3..f42a98f 100644
--- a/python/hccd/path_tracker.py
+++ b/python/hccd/path_tracker.py
@@ -29,7 +29,7 @@ class PathTracker:
 
     def step(self, y):
         """Perform one predictor-corrector step."""
-        return self.transparent_step(y)[0]
+        return self.transparent_step(y)[3]
 
     def transparent_step(self, y) -> typing.Tuple[np.ndarray, np.ndarray, np.ndarray, np.ndarray,]:
         """Perform one predictor-corrector step, returning intermediate results."""