diff --git a/vip_hci/fm/negfc_speckle_noise.py b/vip_hci/fm/negfc_speckle_noise.py
index 0ca32d0b..9164f184 100644
--- a/vip_hci/fm/negfc_speckle_noise.py
+++ b/vip_hci/fm/negfc_speckle_noise.py
@@ -325,7 +325,7 @@ def speckle_noise_uncertainty(cube, p_true, angle_range, derot_angles, algo,
         offset = np.array(trim_offset)
 
     if bins is None:
-        bins = int(offset.shape[0]/10)
+        bins = int(offset.shape[0]/6)
 
     if force_rPA:
         labels = []