diff --git a/pygarrayimage/arrayimage.py b/pygarrayimage/arrayimage.py
index 5b32ea4..8f947d0 100644
--- a/pygarrayimage/arrayimage.py
+++ b/pygarrayimage/arrayimage.py
@@ -35,7 +35,7 @@
 from pyglet.image import ImageData
 import ctypes
 
-__version__ = '1.0' # keep in sync with ../setup.py
+__version__ = '1.1' # keep in sync with ../setup.py
 __all__ = ['ArrayInterfaceImage']
 
 def is_c_contiguous(inter):
@@ -163,7 +163,7 @@ def dirty(self):
         '''Force an update of the texture data.
         '''
 
-        texture = self.texture
+        texture = self.get_texture()
         internalformat = None
         self.blit_to_texture(
             texture.target, texture.level, 0, 0, 0, internalformat )
diff --git a/setup.py b/setup.py
index 43e8f31..8324070 100644
--- a/setup.py
+++ b/setup.py
@@ -18,7 +18,7 @@
 than the numpy-defined array interface.
 
 """,
-      version='1.0', # keep in sync with pygarrayimage/arrayimage.py
+      version='1.1', # keep in sync with pygarrayimage/arrayimage.py
       author='Andrew Straw',
       author_email='strawman@astraw.com',
       url='http://code.astraw.com/projects/motmot/wiki/pygarrayimage',