diff --git a/panda/src/effects/lensFlareNode.cxx b/panda/src/effects/lensFlareNode.cxx
index e0c32d077a..4d189845b8 100644
--- a/panda/src/effects/lensFlareNode.cxx
+++ b/panda/src/effects/lensFlareNode.cxx
@@ -171,6 +171,9 @@ prepare_flares(const LVector3f &delta, const LPoint3f &light, const float &angle
     {
       for(int i = _flare_arcs.size(); i < (int)_flares.size(); i++)
       {
+        //Sanity check
+        nassertv(_flare_offsets[i].size() == _flare_scales[i].size());
+
         GeomSprite *sprite = new GeomSprite();
         GeomNode *node = new GeomNode();
 
@@ -184,9 +187,6 @@ prepare_flares(const LVector3f &delta, const LPoint3f &light, const float &angle
         //vertices
         PTA_Vertexf coords(0);
 
-        //Sanity check
-        nassertv(_flare_offsets[i].size() == _flare_scales[i].size());
-
         sprite->set_coords(coords, G_PER_VERTEX);
         sprite->set_num_prims(_flare_offsets[i].size());