diff --git a/src/index.js b/src/index.js
index 7aaa721..e352dc6 100644
--- a/src/index.js
+++ b/src/index.js
@@ -138,6 +138,8 @@ class ThreeMFLoader extends Loader {
 
 			}
 
+			let rootModelFile = null;
+
 			for (file in zip) {
 
 				if (file.match(/\_rels\/.rels$/)) {
@@ -148,9 +150,13 @@ class ThreeMFLoader extends Loader {
 
 					modelRelsName = file;
 
-				} else if (file.match(/^3D\/.*\.model$/)) {
+				} else if ( file.match( /^3D\/[^\/]*\.model$/ ) ) {
+
+					rootModelFile = file;
 
-					modelPartNames.push(file);
+				} else if ( file.match( /^3D\/.*\/.*\.model$/ ) ) {
+
+					modelPartNames.push( file ); // sub models
 
 				} else if (file.match(/^3D\/Textures?\/.*/)) {
 
@@ -160,6 +166,8 @@ class ThreeMFLoader extends Loader {
 
 			}
 
+			modelPartNames.push( rootModelFile ); // push root model at the end so it is processed after the sub models
+
 			if (relsName === undefined) throw new Error('THREE.ThreeMFLoader: Cannot find relationship file `rels` in 3MF archive.');
 
 			//