diff --git a/tools/RAiDER/losreader.py b/tools/RAiDER/losreader.py
index 62daded84..421e2d00f 100644
--- a/tools/RAiDER/losreader.py
+++ b/tools/RAiDER/losreader.py
@@ -748,7 +748,7 @@ def build_ray(model_zs, ht, xyz, LOS, MAX_TROPO_HEIGHT=_ZREF):
 
         # If high_ht < height of point - no contribution to integral
         # If low_ht > max_tropo_height - no contribution to integral
-        if (high_ht <= ht) or (low_ht >= MAX_TROPO_HEIGHT):
+        if (high_ht < ht) or (low_ht >= MAX_TROPO_HEIGHT):
             continue
 
         # If low_ht < requested height, start integral at requested height