If I use my shortened first name, will that cause the IRS to reject my tax return?

I accidentally submitted my 1040 tax return with my shortened first name of Chris rather than Christopher, and didn't include my middle initial either. I have my full first name and middle initial on both my W2 and social security card.

Will I likely have my tax return rejected by the IRS? The last name and SS# match, but the first name will be off + middle initial missing.