Item frame entity ID is broken

The entity ID for item frames is broken.

example:
/testfor @e[type=ItemFrame]
results in: Entity type Minecraft:itemframe is invalid

/testfor @e[r=3] (when next to item frame)
results in: Found entity.ItemFrame.name

I found that adding an underscore between ItemFrame fixes the problem, I am unsure if this is an intended ID name change for 1.11 or a bug.

Thank you.