diff --git a/src/testdir/test_largefile.vim b/src/testdir/test_largefile.vim
index 1b3e02a..68d6ec9 100644
--- a/src/testdir/test_largefile.vim
+++ b/src/testdir/test_largefile.vim
@@ -24,11 +24,6 @@
   w
   " Check if the file size is 4,000,000,000 bytes.
   let fsize=getfsize(fname)
-  if has('num64')
-    call assert_true(fsize == 4000000000)
-  else
-    " getfsize() returns -2 if a Number is 32 bits.
-    call assert_true(fsize == -2)
-  endif
+  call assert_true(fsize == 4000000000)
   call delete(fname)
 endfunc