diff --git a/xs/src/libslic3r/GCode/WipeTowerPrusaMM.cpp b/xs/src/libslic3r/GCode/WipeTowerPrusaMM.cpp
index adb19eba9..c5b0d6044 100644
--- a/xs/src/libslic3r/GCode/WipeTowerPrusaMM.cpp
+++ b/xs/src/libslic3r/GCode/WipeTowerPrusaMM.cpp
@@ -366,8 +366,8 @@ private:
 	float   	  m_angle_deg = 0.f;
 	float		  m_y_shift = 0.f;
 	WipeTower::xy m_wipe_tower_pos;
-	float 		  m_wipe_tower_width;
-	float		  m_wipe_tower_depth;
+	float 		  m_wipe_tower_width = 0.f;
+	float		  m_wipe_tower_depth = 0.f;
 	float		  m_last_fan_speed = 0.f;
 
 		std::string
diff --git a/xs/src/libslic3r/GCode/WipeTowerPrusaMM.hpp b/xs/src/libslic3r/GCode/WipeTowerPrusaMM.hpp
index 9ed7ae128..ea704694a 100644
--- a/xs/src/libslic3r/GCode/WipeTowerPrusaMM.hpp
+++ b/xs/src/libslic3r/GCode/WipeTowerPrusaMM.hpp
@@ -183,7 +183,7 @@ private:
 	xy 	   m_wipe_tower_pos; 			// Left front corner of the wipe tower in mm.
 	float  m_wipe_tower_width; 			// Width of the wipe tower.
 	float  m_wipe_tower_depth 	= 0.f; 	// Depth of the wipe tower
-	float  m_wipe_tower_rotation_angle; // Wipe tower rotation angle in degrees (with respect to x axis
+	float  m_wipe_tower_rotation_angle = 0.f; // Wipe tower rotation angle in degrees (with respect to x axis
 	float  m_y_shift			= 0.f;  // y shift passed to writer
 	float  m_z_pos 				= 0.f;  // Current Z position.
 	float  m_layer_height 		= 0.f; 	// Current layer height.
diff --git a/xs/src/slic3r/GUI/3DScene.cpp b/xs/src/slic3r/GUI/3DScene.cpp
index cfc0947fe..74ec515c1 100644
--- a/xs/src/slic3r/GUI/3DScene.cpp
+++ b/xs/src/slic3r/GUI/3DScene.cpp
@@ -321,11 +321,11 @@ int GLVolumeCollection::load_wipe_tower_preview(
     Point origin_of_rotation(0.f,0.f);
     mesh.rotate(rotation_angle,&origin_of_rotation);
 
-	v.indexed_vertex_array.load_mesh_flat_shading(mesh);
-	v.origin = Pointf3(pos_x, pos_y, 0.);
+    v.indexed_vertex_array.load_mesh_flat_shading(mesh);
+    v.origin = Pointf3(pos_x, pos_y, 0.);
     // finalize_geometry() clears the vertex arrays, therefore the bounding box has to be computed before finalize_geometry().
     v.bounding_box = v.indexed_vertex_array.bounding_box();
-	v.indexed_vertex_array.finalize_geometry(use_VBOs);
+    v.indexed_vertex_array.finalize_geometry(use_VBOs);
     v.composite_id = obj_idx * 1000000;
     v.select_group_id = obj_idx * 1000000;
     v.drag_group_id = obj_idx * 1000;
@@ -2291,7 +2291,7 @@ void _3DScene::_load_shells(const Print& print, GLVolumeCollection& volumes, boo
     const PrintConfig& config = print.config;
     unsigned int extruders_count = config.nozzle_diameter.size();
     if ((extruders_count > 1) && config.single_extruder_multi_material && config.wipe_tower && !config.complete_objects)
-        volumes.load_wipe_tower_preview(1000, config.wipe_tower_x, config.wipe_tower_y, config.wipe_tower_width, config.wipe_tower_per_color_wipe * (extruders_count - 1), max_z, use_VBOs);
+        volumes.load_wipe_tower_preview(1000, config.wipe_tower_x, config.wipe_tower_y, config.wipe_tower_width, config.wipe_tower_per_color_wipe * (extruders_count - 1), max_z, config.wipe_tower_rotation_angle, use_VBOs);
 }
 
 }