Slight error in dependant last name

Hello,

I am currently a PhD student and I am considering bringing my wife to the UK with me next September. After we got married she changed here last name to mine and applied for her passport using it. She made a slight error, however, when she was fill in her application form, instead of writing "gendouz" she wrote "gendouze" (she added an E at the end). We went to some countries after she got her passport but we applied for visas separately thus the error wasn't significant. We want to use this similarity in visas and trip dates as one of the evidence that validates the genuineness of our relationship, that's why she can't just apply for new passport. The latter also can't be rectified because it's biometric.

I was wondering whether this slight error can cause problems when she applies to join me next September?


Thanks.