diff --git a/openVulkanoCpp/Scene/MeshWriter.cpp b/openVulkanoCpp/Scene/MeshWriter.cpp
index fccd8ca..be6326f 100644
--- a/openVulkanoCpp/Scene/MeshWriter.cpp
+++ b/openVulkanoCpp/Scene/MeshWriter.cpp
@@ -100,7 +100,7 @@ namespace OpenVulkano::Scene
 		tinyusdz::Attribute uvAttr;
 		std::vector<tinyusdz::value::texcoord2f> uvs(geometry->vertexCount);
 
-		for (int i = 0; i < geometry->vertexCount; ++i)
+		for (uint32_t i = 0; i < geometry->vertexCount; ++i)
 		{
 			const Vertex& v = geometry->vertices[i];
 			pts[i].x = v.position.x;
@@ -115,7 +115,7 @@ namespace OpenVulkano::Scene
 		std::vector<int> counts(geometry->indexCount / 3, 3); // NOTE(vb): The value 3 is kind of arbitrary, but this array must be in the mesh!
 		mesh.faceVertexCounts.set_value(counts);
 
-		for (int i = 0; i < geometry->indexCount; ++i)
+		for (uint32_t i = 0; i < geometry->indexCount; ++i)
 		{
 			uint32_t index = GetIndexFromGeometry(geometry, i);
 			indices[i] = index;