diff --git a/libc/Makefile b/libc/Makefile
index ba49b95f..9e9081dd 100644
--- a/libc/Makefile
+++ b/libc/Makefile
@@ -132,6 +132,7 @@ string/strstr.o \
 string/strtok.o \
 string/strtok_r.o \
 string/strverscmp.o \
+string/strxfrm_l.o \
 string/strxfrm.o \
 time/asctime.o \
 time/asctime_r.o \
diff --git a/libc/include/string.h b/libc/include/string.h
index 46b8308b..b8ad345d 100644
--- a/libc/include/string.h
+++ b/libc/include/string.h
@@ -64,12 +64,12 @@ char* strtok(char* __restrict, const char* __restrict);
 char* strtok_r(char* __restrict, const char* __restrict, char** __restrict);
 int strverscmp(const char*, const char*);
 size_t strxfrm(char* __restrict, const char* __restrict, size_t);
+size_t strxfrm_l(char* __restrict, const char* __restrict, size_t, locale_t);
 
 /* TODO: These are not implemented in sortix libc yet. */
 #if defined(__SORTIX_SHOW_UNIMPLEMENTED)
 char* strerror_l(int, locale_t);
 int strerror_r(int, char*, size_t);
-size_t strxfrm_l(char* __restrict, const char* __restrict, size_t, locale_t);
 #endif
 
 #if defined(_SORTIX_SOURCE) || defined(_GNU_SOURCE)
diff --git a/libc/string/strxfrm_l.cpp b/libc/string/strxfrm_l.cpp
new file mode 100644
index 00000000..037cef89
--- /dev/null
+++ b/libc/string/strxfrm_l.cpp
@@ -0,0 +1,31 @@
+/*******************************************************************************
+
+    Copyright(C) Jonas 'Sortie' Termansen 2013.
+
+    This file is part of the Sortix C Library.
+
+    The Sortix C Library is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    The Sortix C Library 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 Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
+
+    string/strxfrm_l.cpp
+    Transform a string such that the result of strcmp is the same as strcoll_l.
+
+*******************************************************************************/
+
+#include <string.h>
+
+extern "C"
+size_t strxfrm_l(char* dest, const char* src, size_t n, locale_t /*locale*/)
+{
+	return strxfrm(dest, src, n);
+}