diff --git a/modules/base/rendering/multimodelgeometry.cpp b/modules/base/rendering/multimodelgeometry.cpp
index 6c37523a1c..3c28530276 100644
--- a/modules/base/rendering/multimodelgeometry.cpp
+++ b/modules/base/rendering/multimodelgeometry.cpp
@@ -67,6 +67,7 @@ namespace openspace {
                 {
                     Vertex vv;
                     memcpy(vv.location, v.location, sizeof(GLfloat) * 3);
+                    vv.location[3] = 0.0;
                     memcpy(vv.tex, v.tex, sizeof(GLfloat) * 2);
                     memcpy(vv.normal, v.normal, sizeof(GLfloat) * 3);
                     _vertices.push_back(vv);