diff --git a/Inst_eddies/config.f90 b/Inst_eddies/config.f90
index a6e93fb046fe9adb5955852ed1d5baa4b19a557e..15d8df4bccb37eb4758c0fdd007d58c6627f4295 100644
--- a/Inst_eddies/config.f90
+++ b/Inst_eddies/config.f90
@@ -1,6 +1,5 @@
 module config_m
 
-  use, intrinsic:: ISO_FORTRAN_ENV
   use jumble, only: pi
 
   implicit none
@@ -22,6 +21,8 @@ contains
 
   subroutine config
 
+    use, intrinsic:: ISO_FORTRAN_ENV
+
     ! Libraries:
     use jumble, only: new_unit