diff --git a/script/device/Image.py b/script/device/Image.py
index dbbe5d1..210b084 100644
--- a/script/device/Image.py
+++ b/script/device/Image.py
@@ -33,7 +33,7 @@ class ImageCorrectedIntensity(DeviceBase, Readable):
         self.setCache(ret, None)
         return ret
 
-class ImageMatrix(ReadonlyRegisterBase, ReadonlyRegisterMatrix, Readable.LongType):
+class ImageMatrix(ReadonlyRegisterBase, ReadonlyRegisterMatrix, Readable.IntegerType):
     def __init__(self, image):
         DeviceBase.__init__(self, "Matrix")
         self.setParent(image)
@@ -45,7 +45,7 @@ class ImageMatrix(ReadonlyRegisterBase, ReadonlyRegisterMatrix, Readable.LongTyp
         return self.getParent().pixel.PIX_XDIM
 
     def getHeight(self):
-        return self.getParent().pixel.PIY_YDIM
+        return self.getParent().pixel.PIX_YDIM