diff --git a/skimage/exposure/unwrap.py b/skimage/exposure/unwrap.py
index d83c2c65..648842db 100644
--- a/skimage/exposure/unwrap.py
+++ b/skimage/exposure/unwrap.py
@@ -1,7 +1,7 @@
 import numpy as np
 
-import ._unwrap_2d
-import ._unwrap_3d
+from . import _unwrap_2d
+from . import _unwrap_3d
 
 
 def unwrap(image, wrap_around=False):