diff --git a/skais/ais/ais_trajectory.py b/skais/ais/ais_trajectory.py
index 0e832e8fe87efdf63145079f1653a324ff0fbb07..70daaa2c2ae24638c64761f8ad16401099510053 100644
--- a/skais/ais/ais_trajectory.py
+++ b/skais/ais/ais_trajectory.py
@@ -29,7 +29,7 @@ def compute_trajectory(times, time_gap, size_limit):
     return i
 
 
-#@jit(nopython=True)
+@jit(nopython=True)
 def compute_std(dat, radius):
     stds = np.empty(dat.shape[0])