diff --git a/tools/bits-info.sh b/tools/bits-info.sh
index 6b4f1500..784a7ec8 100755
--- a/tools/bits-info.sh
+++ b/tools/bits-info.sh
@@ -309,13 +309,18 @@ main()
   _limits_date='32767 2147480047 2147483647 32535215999 32535244799 67767976233529199 67767976233532799 67768036191673199 67768036191676799 9223372036854775807'
   _limits_u='65535 2147483647 2147483648 4294967295 18446744073709551615'
 
-  shell_exe="$(readlink 2> /dev/null "/proc/${$}/exe")" || shell_exe=''
+  shell_exe="$(readlink 2> /dev/null "/proc/${$}/exe")" || shell_exe='x'
 
   shell_info="$(get_shell_info || true)"
   shell_name="$(printf '%s\n' "${shell_info:?}" | cut -d ' ' -f '1' || true)"
 
 echo "_${shell_exe?}_"
-check_bitness_of_pe_file "${shell_exe:?}"
+ls -l /proc/$$/path/a.out || true
+stat /proc/$$/path/a.out || true
+readlink /proc/$$/path/a.out || true
+echo '==='
+
+test -n "${shell_exe?}" && check_bitness_of_pe_file "${shell_exe:?}"
   if test -n "${shell_exe?}" && tmp_var="$(hexdump 2> /dev/null -v -n 5 -e '/1 "%02x"' -- "${shell_exe:?}")" && test -n "${tmp_var?}" && printf '%s\n' "${tmp_var:?}" | grep -m 1 -q -e '^7f454c46'; then
     # On Linux / Android
     # ELF header => 0x7F + ELF (0x45 0x4C 0x46) + 0x01 for 32-bit or 0x02 for 64-bit