diff --git a/src/libslic3r/GCode/SeamPlacer.hpp b/src/libslic3r/GCode/SeamPlacer.hpp
index 740fb33bc..cfad8c1ba 100644
--- a/src/libslic3r/GCode/SeamPlacer.hpp
+++ b/src/libslic3r/GCode/SeamPlacer.hpp
@@ -128,7 +128,7 @@ public:
 
     // arm length used during angles computation
     static constexpr float polygon_local_angles_arm_distance = 0.3f;
-    static constexpr float sharp_angle_snapping_threshold = 0.3 * PI;
+    static constexpr float sharp_angle_snapping_threshold = 0.3f * float(PI);
 
     // max tolerable distance from the previous layer is overhang_distance_tolerance_factor * flow_width
     static constexpr float overhang_distance_tolerance_factor = 0.5f;