I worked in Oregon, but live in Washington State. I had to sell part of my IRA from home in Washington, there for the IRA isn’t subject to Oregon Tax, how do I fix this?

I thought this was pretty clear, 

I worked in Oregon, but I live in Washington State. I had to sell part of my IRA from home in Washington, there for I was told the IRA isn’t subject to Oregon Tax, how do I fix this?