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-rw-r--r--src/ui/tools/pen-tool.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/ui/tools/pen-tool.cpp b/src/ui/tools/pen-tool.cpp
index 70cbcaf0d..649c64034 100644
--- a/src/ui/tools/pen-tool.cpp
+++ b/src/ui/tools/pen-tool.cpp
@@ -1185,7 +1185,7 @@ void PenTool::_setSubsequentPoint(Geom::Point const p, bool statusbar, guint sta
// we are drawing horizontal/vertical lines and hit an anchor;
Geom::Point const origin = this->p[0];
// if the previous point and the anchor are not aligned either horizontally or vertically...
- if ((abs(p[Geom::X] - origin[Geom::X]) > 1e-9) && (abs(p[Geom::Y] - origin[Geom::Y]) > 1e-9)) {
+ if ((std::abs(p[Geom::X] - origin[Geom::X]) > 1e-9) && (std::abs(p[Geom::Y] - origin[Geom::Y]) > 1e-9)) {
// ...then we should draw an L-shaped path, consisting of two paraxial segments
Geom::Point intermed = p;
this->_setToNearestHorizVert(intermed, status, false);