diff --git a/biogeophys/FatesPlantRespPhotosynthMod.F90 b/biogeophys/FatesPlantRespPhotosynthMod.F90
index 6ba30b37..5aeee1f1 100644
--- a/biogeophys/FatesPlantRespPhotosynthMod.F90
+++ b/biogeophys/FatesPlantRespPhotosynthMod.F90
@@ -328,7 +328,7 @@ subroutine FatesPlantRespPhotosynthDrive (nsites, sites,bc_in,bc_out,dtime)
                            laican = 0._r8
                         else
 
-                           laican = sum(currentPatch%canopy_layertlai(1:cl-1)) 
+                           laican = sum(currentPatch%canopy_layer_tai(1:cl-1)) 
 
                         end if