diff --git a/skimage/feature/_hog.py b/skimage/feature/_hog.py
index a66e5e4e..743597b0 100644
--- a/skimage/feature/_hog.py
+++ b/skimage/feature/_hog.py
@@ -128,11 +128,13 @@ def hog(image, orientations=9, pixels_per_cell=(8, 8),
         dx_arr = radius * np.cos(orientations_arr / orientations_arr * np.pi)
         dy_arr = radius * np.sin(orientations_arr / orientations_arr * np.pi)
 
+        cc = cy + cy
+        cr = cx + cx
         hog_image = np.zeros((sy, sx), dtype=float)
         for x in range(n_cellsx):
             for y in range(n_cellsy):
                 for o, dx, dy in zip(orientations_arr, dx_arr, dy_arr):
-                    centre = tuple([y * cy + cy // 2, x * cx + cx // 2])
+                    centre = tuple([y * cc // 2, x * cr // 2])
 
                     rr, cc = draw.line(int(centre[0] - dx),
                                        int(centre[1] + dy),