Mistake on passport signature - validity issues?

Hi everyone,

I am in a bit of a muddle.

When signing my passport, the pen's ink stopped working properly mid-way through, so I had to go over that part again, but the tracing wasn't perfect and you can see light lines underneath from the first attempt.

Does anybody have any experience with this issue in terms of immigration officials, boarding, etc.?

I unfortunately do not have time to get a new one until my travel date, and I am heartbroken that my stupidity might cost my husband and I dearly.

We are travelling to the Netherlands, if this helps at all.

Thank you in advance for any insight.