1 files changed, 2 insertions, 1 deletions
diff --git a/src/fd.sh b/src/fd.sh
index b929dfa..387e17c 100644
--- a/src/fd.sh
+++ b/src/fd.sh
@@ -18,7 +18,8 @@
 # along with the ProteanOS Development Kit.  If not, see
 # <http://www.gnu.org/licenses/>.
 
-_FD_MIN=3
+# FD 3 is available as a temporary FD.
+_FD_MIN=4
 # Shells and the file descriptors they reserve for the user:
 #   * Debian Almquist Shell
 #     - The shell doesn't understand any file descriptor greater than 9.