Reuters reports that Bank of France Governor Francois Villeroy de Galhau said that european efforts to build a more unified cross-border banking system have ground to a halt over opposition to deposit guarantee plans, urging a new push to complete the project.

Villeroy said Europe’s banking sector remains fragmented, with lenders reluctant to merge and scale up to better take on foreign competition.

EU governments created a single banking supervisor and a single bank resolution mechanism for lenders that fail in response to Europe’s sovereign debt crisis a decade ago.

But efforts to complete the project have floundered over plans for an EU-wide deposit guarantee, which is particularly sensitive in countries like Germany where there are concerns about being exposed to the risks of weaker banking systems elsewhere in Europe.

“We should neither relax now that the banking crisis is mostly over, nor wait for the next crisis to act,” Villeroy said. “It is precisely because we are not in a crisis situation that we should move forward now.”