diff --git a/src/libslic3r/Geometry/ArcWelder.cpp b/src/libslic3r/Geometry/ArcWelder.cpp
index 4b02a31dce..0bc71aea3a 100644
--- a/src/libslic3r/Geometry/ArcWelder.cpp
+++ b/src/libslic3r/Geometry/ArcWelder.cpp
@@ -120,6 +120,7 @@ static inline bool circle_approximation_sufficient(const Circle &circle, const P
     return true;
 }
 
+#if 0
 static inline bool get_deviation_sum_squared(const Circle &circle, const Points::const_iterator begin, const Points::const_iterator end, const double tolerance, double &total_deviation)
 {
     // The circle was calculated from the 1st and last point of the point sequence, thus the fitting of those points does not need to be evaluated.
@@ -148,6 +149,7 @@ static inline bool get_deviation_sum_squared(const Circle &circle, const Points:
 
     return true;
 }
+#endif
 
 double arc_fit_variance(const Point &start_pos, const Point &end_pos, const float radius, bool is_ccw,
     const Points::const_iterator begin, const Points::const_iterator end)