diff --git a/code/LWOLoader.cpp b/code/LWOLoader.cpp
index feb8ee8df..5ec07800d 100644
--- a/code/LWOLoader.cpp
+++ b/code/LWOLoader.cpp
@@ -67,7 +67,7 @@ static const aiImporterDesc desc = {
     "LightWave/Modo Object Importer",
     "",
     "",
-    "http://www.newtek.com/lightwave.html\nhttp://www.luxology.com/modo/",
+    "https://www.lightwave3d.com/lightwave_sdk/",
     aiImporterFlags_SupportTextFlavour,
     0,
     0,
diff --git a/code/ObjExporter.cpp b/code/ObjExporter.cpp
index 564de1c12..d51097699 100644
--- a/code/ObjExporter.cpp
+++ b/code/ObjExporter.cpp
@@ -122,14 +122,17 @@ std::string ObjExporter :: GetMaterialLibName()
 }
 
 // ------------------------------------------------------------------------------------------------
-std::string ObjExporter :: GetMaterialLibFileName()
-{
+std::string ObjExporter::GetMaterialLibFileName() {
+    // Remove existing .obj file extention so that the final material file name will be fileName.mtl and not fileName.obj.mtl
+    size_t lastdot = filename.find_last_of('.');
+    if (lastdot != std::string::npos)
+        filename = filename.substr(0, lastdot);
+
     return filename + MaterialExt;
 }
 
 // ------------------------------------------------------------------------------------------------
-void ObjExporter :: WriteHeader(std::ostringstream& out)
-{
+void ObjExporter :: WriteHeader(std::ostringstream& out) {
     out << "# File produced by Open Asset Import Library (http://www.assimp.sf.net)" << endl;
     out << "# (assimp v" << aiGetVersionMajor() << '.' << aiGetVersionMinor() << '.' << aiGetVersionRevision() << ")" << endl  << endl;
 }
diff --git a/code/ObjExporter.h b/code/ObjExporter.h
index e31bf07b7..754202d7b 100644
--- a/code/ObjExporter.h
+++ b/code/ObjExporter.h
@@ -105,7 +105,7 @@ private:
     void AddNode(const aiNode* nd, const aiMatrix4x4& mParent);
 
 private:
-    const std::string filename;
+    std::string filename;
     const aiScene* const pScene;
 
     std::vector<aiVector3D> vp, vn, vt;