diff --git a/miniwin/src/d3drm/backends/software/renderer.cpp b/miniwin/src/d3drm/backends/software/renderer.cpp
index 6b5df06b..9ecc9919 100644
--- a/miniwin/src/d3drm/backends/software/renderer.cpp
+++ b/miniwin/src/d3drm/backends/software/renderer.cpp
@@ -710,7 +710,7 @@ void Direct3DRMSoftwareRenderer::SubmitDraw(
 
 	// Pre-transform all vertex positions and normals
 	m_transformedVerts.clear();
-	m_transformedVerts.reserve(mesh.vertices.size());
+	m_transformedVerts.resize(mesh.vertices.size());
 	for (size_t i = 0; i < mesh.vertices.size(); ++i) {
 		const D3DRMVERTEX& src = mesh.vertices[i];
 		D3DRMVERTEX& dst = m_transformedVerts[i];