diff --git a/Calendar/DesignEntity.py b/Calendar/DesignEntity.py
index 15d465f..204284f 100644
--- a/Calendar/DesignEntity.py
+++ b/Calendar/DesignEntity.py
@@ -15,7 +15,8 @@ class DesignEntity (object):
         self.color_key = color_key
 
     def __init_image__ (self, color = 'white'):
-        self.__image__ = Image.new('RGB', self.size, color=color)
+        rounded_size = (int(self.size[0]),int(self.size[1]))
+        self.__image__ = Image.new('RGB', rounded_size, color=color)
 
     def get_image (self):
         if self.__finished_image__ is False:
@@ -24,10 +25,11 @@ class DesignEntity (object):
         return self.__image__
 
     def draw (self, subimage, pos, mask=False, invert_mask=False, color_key=False):
+        rounded_pos = (int(pos[0]),int(pos[1]))
         img_mask = None
         if mask:
             img_mask = self.__get_mask__(subimage, invert_mask=invert_mask, color_key=color_key)
-        self.__image__.paste(subimage, pos, mask=img_mask)
+        self.__image__.paste(subimage, rounded_pos, mask=img_mask)
 
     def draw_design (self, entity):
         self.draw(entity.get_image(), entity.pos, entity.mask, entity.invert_mask, entity.color_key)