diff --git a/src/slic3r/GUI/ConfigManipulation.cpp b/src/slic3r/GUI/ConfigManipulation.cpp
index 7e64abcde1..0b2af37b8e 100644
--- a/src/slic3r/GUI/ConfigManipulation.cpp
+++ b/src/slic3r/GUI/ConfigManipulation.cpp
@@ -162,8 +162,8 @@ void ConfigManipulation::update_print_fff_config(DynamicPrintConfig* config, con
 
     if (config->opt_bool("support_material")) {
         // Ask only once.
-        if (!support_material_overhangs_queried) {
-            support_material_overhangs_queried = true;
+        if (!m_support_material_overhangs_queried) {
+            m_support_material_overhangs_queried = true;
             if (!config->opt_bool("overhangs")/* != 1*/) {
                 wxString msg_text = _(L("Supports work better, if the following feature is enabled:\n"
                                         "- Detect bridging perimeters"));
@@ -182,7 +182,7 @@ void ConfigManipulation::update_print_fff_config(DynamicPrintConfig* config, con
         }
     }
     else {
-        support_material_overhangs_queried = false;
+        m_support_material_overhangs_queried = false;
     }
 
     if (config->option<ConfigOptionPercent>("fill_density")->value == 100) {
diff --git a/src/slic3r/GUI/ConfigManipulation.hpp b/src/slic3r/GUI/ConfigManipulation.hpp
index 0d6250b5af..0e6815753e 100644
--- a/src/slic3r/GUI/ConfigManipulation.hpp
+++ b/src/slic3r/GUI/ConfigManipulation.hpp
@@ -17,15 +17,12 @@ class ModelConfig;
 
 namespace GUI {
 
-// This variable have to be static because of use its value from Preset configuration 
-// and from object/parts configuration from the Settings in sidebar 
-static bool support_material_overhangs_queried {false};
-
 class ConfigManipulation
 {
     bool                is_msg_dlg_already_exist{ false };
 
     bool                m_is_initialized_support_material_overhangs_queried{ false };
+    bool                m_support_material_overhangs_queried{ false };
 
     // function to loading of changed configuration 
     std::function<void()>                                       load_config = nullptr;
@@ -66,7 +63,7 @@ public:
     void    initialize_support_material_overhangs_queried(bool queried)
     {
         m_is_initialized_support_material_overhangs_queried = true;
-        support_material_overhangs_queried = queried;
+        m_support_material_overhangs_queried = queried;
     }
 };