diff --git a/gui/wxpython/vdigit/wxdisplay.py b/gui/wxpython/vdigit/wxdisplay.py
index c6bdaa1ea74..20e8d63d274 100644
--- a/gui/wxpython/vdigit/wxdisplay.py
+++ b/gui/wxpython/vdigit/wxdisplay.py
@@ -712,6 +712,7 @@ def SelectLineByPoint(self, point, ltype=None, poMapInfo=None):
         pz = c_double()
         if not self._validLine(lineNearest):
             return {"line": -1, "point": None}
+        _ = Vect_read_line(poMapInfo, self.poPoints, self.poCats, lineNearest)
         Vect_line_distance(
             self.poPoints,
             point[0],
@@ -855,6 +856,7 @@ def GetSelectedVertex(self, pos):
 
         if not self._validLine(line):
             return -1
+        _ = Vect_read_line(poMapInfo, self.poPoints, self.poCats, lineNearest)
 
         minDist = 0.0
         Gid = -1