diff --git a/src/kohn_sham/print_mos.irp.f b/src/kohn_sham/print_mos.irp.f
index 5e728444..7105c989 100644
--- a/src/kohn_sham/print_mos.irp.f
+++ b/src/kohn_sham/print_mos.irp.f
@@ -21,10 +21,3 @@ program print_mos
 
 end
 
-double precision function f_mu(x)
- implicit none
- double precision, intent(in) :: x
- 
-
-
-end