diff --git a/Assets/UniGLTF/Runtime/UniGLTF/IO/ImporterContext.cs b/Assets/UniGLTF/Runtime/UniGLTF/IO/ImporterContext.cs
index abf45ef75..e102d281e 100644
--- a/Assets/UniGLTF/Runtime/UniGLTF/IO/ImporterContext.cs
+++ b/Assets/UniGLTF/Runtime/UniGLTF/IO/ImporterContext.cs
@@ -169,14 +169,18 @@ namespace UniGLTF
 
             try
             {
-                var index = generatorVersion.IndexOf('.');
-                var generatorMajor = int.Parse(generatorVersion.Substring(8, index - 8));
-                var generatorMinor = int.Parse(generatorVersion.Substring(index + 1));
+                var splitted = generatorVersion.Substring(8).Split('.');
+                var generatorMajor = int.Parse(splitted[0]);
+                var generatorMinor = int.Parse(splitted[1]);
 
                 if (generatorMajor < major)
                 {
                     return true;
                 }
+                else if (generatorMajor > major)
+                {
+                    return false;
+                }
                 else
                 {
                     if (generatorMinor >= minor)