diff --git a/src/libslic3r/Support/SupportMaterial.cpp b/src/libslic3r/Support/SupportMaterial.cpp
index a85e744b7..c63eb36da 100644
--- a/src/libslic3r/Support/SupportMaterial.cpp
+++ b/src/libslic3r/Support/SupportMaterial.cpp
@@ -3459,7 +3459,8 @@ std::pair<SupportGeneratorLayersPtr, SupportGeneratorLayersPtr> generate_interfa
 
     bool   snug_supports                 = m_object_config->support_style.value == smsSnug;
     // BBS: if support interface and support base do not use the same filament, add a base layer to improve their adhesion
-    bool differnt_support_interface_filament = m_object_config->support_filament != 0 && m_object_config->support_interface_filament != 0 && m_object_config->support_interface_filament.value != m_object_config->support_filament.value;
+    // Note: support materials (such as Supp.W) can't be used as support base now, so support interface and base are still using different filaments even if support_filament==0
+    bool differnt_support_interface_filament = m_object_config->support_interface_filament != 0 && m_object_config->support_interface_filament.value != m_object_config->support_filament.value;
     int num_base_interface_layers_top = differnt_support_interface_filament ? 1 : 0;
     int num_base_interface_layers_bottom = differnt_support_interface_filament ? 1 : 0;
     int num_interface_layers_top = m_object_config->support_interface_top_layers + num_base_interface_layers_top;
diff --git a/src/libslic3r/Support/SupportParameters.hpp b/src/libslic3r/Support/SupportParameters.hpp
index 2ea0f2c05..590a23549 100644
--- a/src/libslic3r/Support/SupportParameters.hpp
+++ b/src/libslic3r/Support/SupportParameters.hpp
@@ -84,8 +84,8 @@ struct SupportParameters {
         }
 
 
-        this->base_angle = Geometry::deg2rad(float(object_config.support_threshold_angle.value));
-        this->interface_angle = Geometry::deg2rad(float(object_config.support_threshold_angle.value + 90.));
+        this->base_angle = Geometry::deg2rad(float(object_config.support_angle.value));
+        this->interface_angle = Geometry::deg2rad(float(object_config.support_angle.value + 90.));
         this->interface_spacing = object_config.support_interface_spacing.value + this->support_material_interface_flow.spacing();
         this->interface_density = std::min(1., this->support_material_interface_flow.spacing() / this->interface_spacing);
         this->support_spacing = object_config.support_base_pattern_spacing.value + this->support_material_flow.spacing();