Germany’s Foreign Ministry says the Turkish ambassador has returned to his post in Berlin, some four months after over a parliamentary resolution that labeled the killings of Armenians by Ottoman Turks a century ago as genocide, the Associated Press reports.

Deputy foreign minister Markus Ederer met with ambassador Huseyin Avni Karslioglu Friday and said his return was “an important positive step in bilateral relations.”

The ambassador’s return was the latest sign of a thaw between the two countries following the June vote in Parliament.

Last month, Turkey gave its approval for German lawmakers to visit German troops at a Turkish air base, ending a standoff that had deepened strains in ties between the two NATO allies. The visit took place earlier this week.