diff --git a/bmad/photon/to_surface_coords.f90 b/bmad/photon/to_surface_coords.f90
index 7d180feaaa..b114920277 100644
--- a/bmad/photon/to_surface_coords.f90
+++ b/bmad/photon/to_surface_coords.f90
@@ -14,7 +14,7 @@
 
 subroutine to_surface_coords (lab_orbit, ele, surface_orbit)
 
-use photon_utils_mod
+use photon_utils_mod, dummy => to_surface_coords
 use super_recipes_mod, only: super_qromb
 
 implicit none