diff --git a/plugins/SolidView/SolidView.py b/plugins/SolidView/SolidView.py
index 3e3501a83f..3b56ac1881 100644
--- a/plugins/SolidView/SolidView.py
+++ b/plugins/SolidView/SolidView.py
@@ -47,7 +47,9 @@ class SolidView(View):
         if global_container_stack:
             if Preferences.getInstance().getValue("view/show_overhang"):
                 angle = global_container_stack.getProperty("support_angle", "value")
-                if angle is not None and global_container_stack.getProperty("support_angle", "validationState") == ValidatorState.Valid:
+                # Make sure the overhang angle is valid before passing it to the shader
+                # Note: if the overhang angle is set to its default value, it does not need to get validated (validationState = None)
+                if angle is not None and global_container_stack.getProperty("support_angle", "validationState") in [None, ValidatorState.Valid]:
                     self._enabled_shader.setUniformValue("u_overhangAngle", math.cos(math.radians(90 - angle)))
                 else:
                     self._enabled_shader.setUniformValue("u_overhangAngle", math.cos(math.radians(0))) #Overhang angle of 0 causes no area at all to be marked as overhang.