diff --git a/indexer/mercator.cpp b/indexer/mercator.cpp
index e7834e5600..4bf148a94a 100644
--- a/indexer/mercator.cpp
+++ b/indexer/mercator.cpp
@@ -4,4 +4,4 @@ double MercatorBounds::minX = -180;
 double MercatorBounds::maxX = 180;
 double MercatorBounds::minY = -180;
 double MercatorBounds::maxY = 180;
-double const MercatorBounds::degreeInMetres = 1.0 / 111111.0;
+double const MercatorBounds::degreeInMetres = 360.0 / 40008245;