diff --git a/xs/src/libslic3r/GCode/ToolOrdering.cpp b/xs/src/libslic3r/GCode/ToolOrdering.cpp
index a8954eca5..271b75ef3 100644
--- a/xs/src/libslic3r/GCode/ToolOrdering.cpp
+++ b/xs/src/libslic3r/GCode/ToolOrdering.cpp
@@ -265,8 +265,8 @@ void ToolOrdering::fill_wipe_tower_partitions(const PrintConfig &config, coordf_
                     // Insert one additional wipe tower layer between lh.print_z and lt_object.print_z.
                     LayerTools lt_new(0.5f * (lt.print_z + lt_object.print_z));
                     // Find the 1st layer above lt_new.
-                    for (j = i + 1; j < m_layer_tools.size() && m_layer_tools[j].print_z < lt_new.print_z; ++ j);
-					if (m_layer_tools[j].print_z == lt_new.print_z) {
+                    for (j = i + 1; j < m_layer_tools.size() && m_layer_tools[j].print_z < lt_new.print_z - EPSILON; ++ j);
+					if (std::abs(m_layer_tools[j].print_z - lt_new.print_z) < EPSILON) {
 						m_layer_tools[j].has_wipe_tower = true;
 					} else {
 						LayerTools &lt_extra = *m_layer_tools.insert(m_layer_tools.begin() + j, lt_new);