diff --git a/tools/fv_diagnostics.F90 b/tools/fv_diagnostics.F90
index 44abc5dc3..83d0b58a7 100644
--- a/tools/fv_diagnostics.F90
+++ b/tools/fv_diagnostics.F90
@@ -1988,7 +1988,7 @@ subroutine fv_diag(Atm, zvir, Time, print_freq)
 
 
 
-       if( idiag%id_slp>0 .or. idiag%id_tm>0 .or. idiag%id_any_hght>0 .or. idiag%id_hght3d .or. idiag%id_c15>0 .or. idiag%id_ctz ) then
+       if( idiag%id_slp>0 .or. idiag%id_tm>0 .or. idiag%id_any_hght>0 .or. idiag%id_hght3d>0 .or. idiag%id_c15>0 .or. idiag%id_ctz>0 ) then
 
           allocate ( wz(isc:iec,jsc:jec,npz+1) )
           call get_height_field(isc, iec, jsc, jec, ngc, npz, Atm(n)%flagstruct%hydrostatic, Atm(n)%delz,  &