diff --git a/newlib/libc/sys/jehanne/Makefile.am b/newlib/libc/sys/jehanne/Makefile.am
index 6c7a79979..295cc0c58 100644
--- a/newlib/libc/sys/jehanne/Makefile.am
+++ b/newlib/libc/sys/jehanne/Makefile.am
@@ -5,7 +5,8 @@ AM_CCASFLAGS = $(INCLUDES)
 noinst_LIBRARIES = lib.a
  
 if MAY_SUPPLY_SYSCALLS
-extra_objs = syscalls.o libposix_conf.o chown.o getrusage.o ids.o
+extra_objs = syscalls.o libposix_conf.o chown.o getrusage.o ids.o \
+	chmod.o
 else
 extra_objs =
 endif
@@ -14,7 +15,8 @@ lib_a_SOURCES = getenv_r.c getenv.c malloc.c mallocr.c free.c freer.c \
 	calloc.c callocr.c realloc.c reallocr.c
 
 lib_a_LIBADD = $(extra_objs)
-EXTRA_lib_a_SOURCES = libposix_conf.c syscalls.c chown.c getrusage.c ids.c
+EXTRA_lib_a_SOURCES = libposix_conf.c syscalls.c chown.c getrusage.c \
+	ids.c chmod.c
 lib_a_DEPENDENCIES = $(extra_objs)
 lib_a_CCASFLAGS = $(AM_CCASFLAGS)
 lib_a_CFLAGS = $(AM_CFLAGS)
diff --git a/newlib/libc/sys/jehanne/Makefile.in b/newlib/libc/sys/jehanne/Makefile.in
index 3e1378348..916f4a235 100644
--- a/newlib/libc/sys/jehanne/Makefile.in
+++ b/newlib/libc/sys/jehanne/Makefile.in
@@ -53,7 +53,7 @@ ARFLAGS = cru
 lib_a_AR = $(AR) $(ARFLAGS)
 @MAY_SUPPLY_SYSCALLS_TRUE@am__DEPENDENCIES_1 = syscalls.o \
 @MAY_SUPPLY_SYSCALLS_TRUE@	libposix_conf.o chown.o getrusage.o \
-@MAY_SUPPLY_SYSCALLS_TRUE@	ids.o
+@MAY_SUPPLY_SYSCALLS_TRUE@	ids.o chmod.o
 am_lib_a_OBJECTS = lib_a-getenv_r.$(OBJEXT) lib_a-getenv.$(OBJEXT) \
 	lib_a-malloc.$(OBJEXT) lib_a-mallocr.$(OBJEXT) \
 	lib_a-free.$(OBJEXT) lib_a-freer.$(OBJEXT) \
@@ -178,12 +178,16 @@ INCLUDES = $(NEWLIB_CFLAGS) $(CROSS_CFLAGS) $(TARGET_CFLAGS)
 AM_CCASFLAGS = $(INCLUDES)
 noinst_LIBRARIES = lib.a
 @MAY_SUPPLY_SYSCALLS_FALSE@extra_objs = 
-@MAY_SUPPLY_SYSCALLS_TRUE@extra_objs = syscalls.o libposix_conf.o chown.o getrusage.o ids.o
+@MAY_SUPPLY_SYSCALLS_TRUE@extra_objs = syscalls.o libposix_conf.o chown.o getrusage.o ids.o \
+@MAY_SUPPLY_SYSCALLS_TRUE@	chmod.o
+
 lib_a_SOURCES = getenv_r.c getenv.c malloc.c mallocr.c free.c freer.c \
 	calloc.c callocr.c realloc.c reallocr.c
 
 lib_a_LIBADD = $(extra_objs)
-EXTRA_lib_a_SOURCES = libposix_conf.c syscalls.c chown.c getrusage.c ids.c
+EXTRA_lib_a_SOURCES = libposix_conf.c syscalls.c chown.c getrusage.c \
+	ids.c chmod.c
+
 lib_a_DEPENDENCIES = $(extra_objs)
 lib_a_CCASFLAGS = $(AM_CCASFLAGS)
 lib_a_CFLAGS = $(AM_CFLAGS)
@@ -341,6 +345,12 @@ lib_a-ids.o: ids.c
 lib_a-ids.obj: ids.c
 	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-ids.obj `if test -f 'ids.c'; then $(CYGPATH_W) 'ids.c'; else $(CYGPATH_W) '$(srcdir)/ids.c'; fi`
 
+lib_a-chmod.o: chmod.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-chmod.o `test -f 'chmod.c' || echo '$(srcdir)/'`chmod.c
+
+lib_a-chmod.obj: chmod.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-chmod.obj `if test -f 'chmod.c'; then $(CYGPATH_W) 'chmod.c'; else $(CYGPATH_W) '$(srcdir)/chmod.c'; fi`
+
 ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
 	list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
 	unique=`for i in $$list; do \
diff --git a/newlib/libc/sys/jehanne/chmod.c b/newlib/libc/sys/jehanne/chmod.c
new file mode 100644
index 000000000..a983cca6d
--- /dev/null
+++ b/newlib/libc/sys/jehanne/chmod.c
@@ -0,0 +1,38 @@
+/*
+ * This file is part of Jehanne.
+ *
+ * Copyright (C) 2017 Giacomo Tesio <giacomo@tesio.it>
+ *
+ * Jehanne is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 2 of the License.
+ *
+ * Jehanne is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Jehanne.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <u.h>
+#include <libc.h>
+#include <posix.h>
+#include <reent.h>
+
+typedef int mode_t;
+
+int
+chmod(const char *pathname, mode_t mode)
+{
+	int *errnop = &_REENT->_errno;
+	return POSIX_chmod(errnop, pathname, mode);
+}
+
+int
+fchmodat(int fd, const char *path, mode_t mode, int flag)
+{
+	int *errnop = &_REENT->_errno;
+	return POSIX_fchmodat(errnop, fd, path, mode, flag);
+}
+