diff --git a/source/KKRnano/source/datastructures/InputParamsNew.txt b/source/KKRnano/source/datastructures/InputParamsNew.txt
index bf982f4d39c51feb3a6b81173ce087c2a76a0cc9..6726ca822405e5ab93dbbf4839a4f0f3feca2440 100644
--- a/source/KKRnano/source/datastructures/InputParamsNew.txt
+++ b/source/KKRnano/source/datastructures/InputParamsNew.txt
@@ -122,3 +122,5 @@ i ncheb 10
 d r_log 0.1D0
 ### parameter a for exponential radial mesh
 d a_log 0.025D0
+### unknown
+l enable_quad_prec .FALSE.
diff --git a/source/KKRnano/source/datastructures/InputParams_mod.F90 b/source/KKRnano/source/datastructures/InputParams_mod.F90
index f6ada62cddc1fe9d30330ec53cf2ef793e8c0455..dfbfc46029f29565b0a3b6d4db51e5af5037b7c0 100644
--- a/source/KKRnano/source/datastructures/InputParams_mod.F90
+++ b/source/KKRnano/source/datastructures/InputParams_mod.F90
@@ -629,9 +629,9 @@ integer function getValues(filename, self) result(ierror)
     destroy_and_return
   endif
 
-  ierror = getValue(cr, "enable_quad_prec", self%enable_quad_prec , def=.false.)
+  ierror = getValue(cr, "enable_quad_prec", self%enable_quad_prec , def=.FALSE.)
   if (ierror == use_default) then
-    write(*,*) "WARNING: Bad/no value given for enable_quad_prec. Set enable_quad_prec to .false."
+    write(*,*) "WARNING: Bad/no value given for enable_quad_prec. Set enable_quad_prec to .FALSE."
     ierror = 0 ! ok, no error
   elseif (ierror /= 0) then
     write(*,*) "Bad/no value given for enable_quad_prec."