Google and its contractor Modis must post notices about worker rights at a data center in South Carolina as part of a settlement reached with the Alphabet Workers Union on Wednesday.

The settlement follows an unfair labor practice charge the union filed with the National Labor Relations Board (NLRB) in February alleging the company prohibited employees from discussing pay with coworkers and suspended a data center technician, Shannon Wait, for supporting the union.

The official notices Google and Modis, part of the Adecco Group, must put up strongly state worker’s rights including that they have the right to join a union and discuss their wage rates.

The notice also states that the company will not discipline workers for discussing wages or for exercising their right to join a union and that all references to Wait’s suspension will be removed from Google’s files.

This is the first NLRB settlement involving the Alphabet Workers Union.