diff --git a/fortran/fourthfree b/fortran/fourthfree
index 8e1535a..820feaf 100755
Binary files a/fortran/fourthfree and b/fortran/fourthfree differ
diff --git a/fortran/fourthfree.f90 b/fortran/fourthfree.f90
index 6a913ea..9bf8e68 100644
--- a/fortran/fourthfree.f90
+++ b/fortran/fourthfree.f90
@@ -2,7 +2,7 @@ program test
 implicit none
     1   format(1i10)
 
-    integer (kind = 8), parameter :: base = 2, chunk = 10
+    integer (kind = 8), parameter :: base = 2, chunk = 1000000000
     double precision :: S
     integer (kind = 8) :: i, len