diff --git a/skimage/draw/_draw.pyx b/skimage/draw/_draw.pyx
index b873a8d5..d3ed0fd0 100644
--- a/skimage/draw/_draw.pyx
+++ b/skimage/draw/_draw.pyx
@@ -83,7 +83,7 @@ def polygon(y, x, shape=None):
     x : (N,) ndarray
         X-coordinates of vertices of polygon.
     shape : tuple, optional
-        image shape which is used to determine maximum extents of output pixel
+        Image shape which is used to determine maximum extents of output pixel
         coordinates. This is useful for polygons which exceed the image size.
         By default the full extents of the polygon are used.
 
diff --git a/skimage/draw/draw.py b/skimage/draw/draw.py
index 6391e06c..2d525a89 100644
--- a/skimage/draw/draw.py
+++ b/skimage/draw/draw.py
@@ -17,7 +17,7 @@ def ellipse(cy, cx, yradius, xradius, shape=None):
     yradius, xradius : double
         Minor and major semi-axes. ``(x/xradius)**2 + (y/yradius)**2 = 1``.
     shape : tuple, optional
-        image shape which is used to determine maximum extents of output pixel
+        Image shape which is used to determine maximum extents of output pixel
         coordinates. This is useful for ellipses which exceed the image size.
         By default the full extents of the ellipse are used.
 
@@ -57,7 +57,7 @@ def circle(cy, cx, radius, shape=None):
     radius: double
         Radius of circle.
     shape : tuple, optional
-        image shape which is used to determine maximum extents of output pixel
+        Image shape which is used to determine maximum extents of output pixel
         coordinates. This is useful for circles which exceed the image size.
         By default the full extents of the circle are used.