diff --git a/BabbleApp/one_euro_filter.py b/BabbleApp/one_euro_filter.py
index 30fa923..2c2421d 100644
--- a/BabbleApp/one_euro_filter.py
+++ b/BabbleApp/one_euro_filter.py
@@ -50,3 +50,6 @@ def __call__(self, x):
             self.t_prev = t
 
             return x_hat
+        else:
+            self.x_prev = x
+            return x