diff --git a/src/slic3r/GUI/GUI_Preview.cpp b/src/slic3r/GUI/GUI_Preview.cpp
index c5746fed1..2b9da6aa0 100644
--- a/src/slic3r/GUI/GUI_Preview.cpp
+++ b/src/slic3r/GUI/GUI_Preview.cpp
@@ -634,7 +634,7 @@ void Preview::update_double_slider(const std::vector<double>& layers_z, bool kee
     bool force_sliders_full_range = was_empty;
     if (!keep_z_range)
     {
-        bool span_changed = layers_z.empty() || std::abs(layers_z.back() - m_slider->GetMaxValueD()) > 1e-6;
+        bool span_changed = layers_z.empty() || std::abs(layers_z.back() - m_slider->GetMaxValueD()) > DoubleSlider::epsilon()/*1e-6*/;
         force_sliders_full_range |= span_changed;
     }
     bool   snap_to_min = force_sliders_full_range || m_slider->is_lower_at_min();
@@ -650,12 +650,12 @@ void Preview::update_double_slider(const std::vector<double>& layers_z, bool kee
     int idx_high = m_slider->GetMaxValue();
     if (! layers_z.empty()) {
         if (! snap_to_min) {
-            int idx_new = find_close_layer_idx(layers_z, z_low, 1e-6);
+            int idx_new = find_close_layer_idx(layers_z, z_low, DoubleSlider::epsilon()/*1e-6*/);
             if (idx_new != -1)
                 idx_low = idx_new;
         }
         if (! snap_to_max) {
-            int idx_new = find_close_layer_idx(layers_z, z_high, 1e-6);
+            int idx_new = find_close_layer_idx(layers_z, z_high, DoubleSlider::epsilon()/*1e-6*/);
             if (idx_new != -1)
                 idx_high = idx_new;
         }
@@ -695,7 +695,7 @@ void Preview::fill_slider_values(std::vector<std::pair<int, double>> &values,
     {
         return (values.back().second < val &&
                 // we can't ignore tick on last layer
-                fabs(values.back().second - val) > EPSILON);
+                fabs(values.back().second - val) > DoubleSlider::epsilon());
     }),
                             ticks_from_config.end());
     if (ticks_from_config.size() != old_size)
diff --git a/src/slic3r/GUI/wxExtensions.cpp b/src/slic3r/GUI/wxExtensions.cpp
index 5f11bec45..06e9a7f90 100644
--- a/src/slic3r/GUI/wxExtensions.cpp
+++ b/src/slic3r/GUI/wxExtensions.cpp
@@ -2217,10 +2217,10 @@ void DoubleSlider::SetTicksValues(const std::vector<double>& heights)
     m_ticks.clear();
     unsigned int i = 0;
     for (auto h : heights) {
-        while (i < m_values.size() && m_values[i].second - EPSILON/*1e-6*/ < h)
+        while (i < m_values.size() && m_values[i].second - epsilon()/*1e-6*/ < h)
             ++i;
         // don't miss last layer if it is
-        if (i == m_values.size() && fabs(m_values[i-1].second - h) > EPSILON)
+        if (i == m_values.size() && fabs(m_values[i-1].second - h) > epsilon())
             return;
         m_ticks.insert(i-1);
     }
diff --git a/src/slic3r/GUI/wxExtensions.hpp b/src/slic3r/GUI/wxExtensions.hpp
index 14ceab8ff..51faffda7 100644
--- a/src/slic3r/GUI/wxExtensions.hpp
+++ b/src/slic3r/GUI/wxExtensions.hpp
@@ -720,6 +720,9 @@ public:
         const wxString& name = wxEmptyString);
     ~DoubleSlider() {}
 
+    // permissible error for layer height
+    static double epsilon() { return 0.0011;}
+
     void    msw_rescale();
 
     int GetMinValue() const { return m_min_value; }