diff --git a/addons/io_scene_gltf2/blender/exp/material/gltf2_blender_search_node_tree.py b/addons/io_scene_gltf2/blender/exp/material/gltf2_blender_search_node_tree.py
index 8a2c48cc2..12a3f7e91 100644
--- a/addons/io_scene_gltf2/blender/exp/material/gltf2_blender_search_node_tree.py
+++ b/addons/io_scene_gltf2/blender/exp/material/gltf2_blender_search_node_tree.py
@@ -510,7 +510,7 @@ def get_multiply_factors(nav):
                 prev.node.type == 'MIX' and
                 prev.node.data_type == 'RGBA' and
                 prev.node.blend_type == 'MULTIPLY' and
-                prev.get_constant('Fac') == 1
+                prev.get_constant('Factor')[0] == 1
             )
             if is_mul:
                 fac1 = prev