diff --git a/code/NDOLoader.cpp b/code/NDOLoader.cpp
index f04eb5345..219057c47 100644
--- a/code/NDOLoader.cpp
+++ b/code/NDOLoader.cpp
@@ -257,7 +257,7 @@ void NDOImporter::InternReadFile( const std::string& pFile,
         }
 
         aiMesh* mesh = new aiMesh();
-        aiFace* faces = mesh->mFaces = new aiFace[mesh->mNumFaces=face_table.size()];
+        aiFace* faces = mesh->mFaces = new aiFace[mesh->mNumFaces=static_cast<unsigned int>(face_table.size())];
 
         vertices.clear();
         vertices.reserve(4 * face_table.size()); // arbitrarily chosen
@@ -278,7 +278,7 @@ void NDOImporter::InternReadFile( const std::string& pFile,
                     next_edge = obj.edges[cur_edge].edge[4];
                     next_vert = obj.edges[cur_edge].edge[0];
                 }
-                indices.push_back( vertices.size() );
+                indices.push_back( static_cast<unsigned int>(vertices.size()) );
                 vertices.push_back(obj.vertices[ next_vert ].val);
 
                 cur_edge = next_edge;
@@ -287,11 +287,11 @@ void NDOImporter::InternReadFile( const std::string& pFile,
                 }
             }
 
-            f.mIndices = new unsigned int[f.mNumIndices = indices.size()];
+            f.mIndices = new unsigned int[f.mNumIndices = static_cast<unsigned int>(indices.size())];
             std::copy(indices.begin(),indices.end(),f.mIndices);
         }
 
-        mesh->mVertices = new aiVector3D[mesh->mNumVertices = vertices.size()];
+        mesh->mVertices = new aiVector3D[mesh->mNumVertices = static_cast<unsigned int>(vertices.size())];
         std::copy(vertices.begin(),vertices.end(),mesh->mVertices);
 
         if (mesh->mNumVertices) {