diff --git a/skimage/morphology/binary.py b/skimage/morphology/binary.py
index 6bd5d234..d74874a6 100644
--- a/skimage/morphology/binary.py
+++ b/skimage/morphology/binary.py
@@ -25,8 +25,8 @@ def binary_erosion(image, selem, out=None):
 
     Returns
     -------
-    eroded : ndarray of bool
-        The result of the morphological erosion.
+    eroded : ndarray of bool or intp
+        The result of the morphological erosion with values in [0, 1].
 
     """
     selem = (selem != 0)
@@ -69,8 +69,8 @@ def binary_dilation(image, selem, out=None):
 
     Returns
     -------
-    dilated : ndarray of bool
-        The result of the morphological dilation.
+    dilated : ndarray of bool or intp
+        The result of the morphological dilation with values in [0, 1].
 
     """
     selem = (selem != 0)