The rules for truesight state:
A creature with truesight can (..) perceive the original form of a shapechanger or a creature that is transformed by magic
A druid player argued that since the druid is still a "humanoid" (not a "shapechanger"), and since wild shape is not a spell, a creature with truesight should not see through it.
As the DM, I ruled against it because I believed the intent of truesight is to see through all kinds of shapechanging effects but I was still left wondering if I missed anything. I couldn't find anything about this in the errata either.
So, going by strict RAW, should a creature with truesight be able to see the druid's true form while a druid is using wild shape?