The elevation height at Pjeskulja peak

According to VGI-TK25 topo map Pjeskulja peak is the highest elevation point of Čabulja mountain at elevation of 1786 meters over the sea level. I checked with 2 GPS units and the elevation is not more than 1750 meters in any case. Velika Vlajina is the highest elevation point at about 1780 meters over the sea level.