Plans of breaking ground on March 14 may have to be scrapped after Ghelamco was asked to amend the documents submitted. Belgium’s new national stadium may be set back one month.

The new national stadium at Parking C in northern Brussels isn’t enjoying an easy start. After heated negotiations with Anderlecht the project is now delayed due to errors in environmental permit files.

Ghelamco, investor of the stadium, has to amend the documents now, which may take some time. According to Johan Van den Driessche of the Brussels parliament, it may take at least a month to make all amendments.

This means groundbreaking date set for March 14 is very unlikely to remain. While Ghelamco assure they’ll correct any errors as fast as possible, the issue of timing remains.

Construction of the 61,500-capacity stadium should end in 2019 in order to safely prepare for Euro 2020. Any significant delays may cause concerns over hosting of the tournament in Brussels, though there’s still a significant time buffer.