diff --git a/xdem/coreg/affine.py b/xdem/coreg/affine.py
index 0efc4f09..1206a2db 100644
--- a/xdem/coreg/affine.py
+++ b/xdem/coreg/affine.py
@@ -186,8 +186,9 @@ def residuals(parameters: tuple[float, float, float], y_values: NDArrayf, x_valu
 
     # Round results above the tolerance to get fixed results on different OS
     a_parameter, b_parameter, c_parameter = results.x
-    a_parameter = np.round(a_parameter, 1)
-    b_parameter = np.round(b_parameter, 1)
+    a_parameter = np.round(a_parameter, 2)
+    b_parameter = np.round(b_parameter, 2)
+    c_parameter = np.round(c_parameter, 2)
 
     # Calculate the easting and northing offsets from the above parameters
     east_offset = a_parameter * np.sin(b_parameter)