diff --git a/examples/MHDTests/CoolingHaloWithSpin_MHD/makeIC.py b/examples/MHDTests/CoolingHaloWithSpin_MHD/makeIC.py
index c923100857dd6965d09e84496982713e10c51b02..af63329d0a35d9d7e1a327c14f52876ac893ec66 100644
--- a/examples/MHDTests/CoolingHaloWithSpin_MHD/makeIC.py
+++ b/examples/MHDTests/CoolingHaloWithSpin_MHD/makeIC.py
@@ -196,10 +196,10 @@ coords -= 0.5
 # cut a sphere
 r_uni = np.linalg.norm(coords, axis=1)
 coords = coords[r_uni <= 0.5]
-coords *= boxSize/5 #boxSize * np.sqrt(3)
+coords *= boxSize/3 #boxSize * np.sqrt(3)
 
 # calculate max distance from the center (units of r_200)
-R_max = boxSize/10 #boxSize/2 #np.sqrt(3) * (boxSize / 2)
+R_max = boxSize/6 #boxSize/2 #np.sqrt(3) * (boxSize / 2)
 r_s = 1 / c_200
 # calculate distances to the center
 r_uni = np.linalg.norm(coords, axis=1)