diff --git a/libc/Makefile b/libc/Makefile
index 78de61a2..4a03450b 100644
--- a/libc/Makefile
+++ b/libc/Makefile
@@ -245,6 +245,7 @@ wchar/mbsrtowcs.o \
 wchar/wcpcpy.o \
 wchar/wcpncpy.o \
 wchar/wcrtomb.o \
+wchar/wcscasecmp.o \
 wchar/wcscat.o \
 wchar/wcschrnul.o \
 wchar/wcschr.o \
diff --git a/libc/include/wchar.h b/libc/include/wchar.h
index cdc0087e..72d663b2 100644
--- a/libc/include/wchar.h
+++ b/libc/include/wchar.h
@@ -199,7 +199,7 @@ size_t mbsnrtowcs(wchar_t* __restrict, const char** __restrict, size_t, size_t,
 /* TODO: FILE* open_wmemstream(wchar_t**, size_t*); */
 wchar_t* wcpcpy(wchar_t* __restrict, const wchar_t* __restrict);
 wchar_t* wcpncpy(wchar_t* __restrict, const wchar_t* __restrict, size_t);
-/* TODO: int wcscasecmp(const wchar_t*, const wchar_t*); */
+int wcscasecmp(const wchar_t*, const wchar_t*);
 /* TODO: int wcscasecmp_l(const wchar_t*, const wchar_t*, locale_t); */
 /* TODO: int wcscoll_l(const wchar_t*, const wchar_t*, locale_t); */
 /* TODO: wchar_t* wcsdup(const wchar_t*); */
diff --git a/libc/wchar/wcscasecmp.cpp b/libc/wchar/wcscasecmp.cpp
new file mode 100644
index 00000000..ad354107
--- /dev/null
+++ b/libc/wchar/wcscasecmp.cpp
@@ -0,0 +1,41 @@
+/*******************************************************************************
+
+    Copyright(C) Jonas 'Sortie' Termansen 2014.
+
+    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/>.
+
+    wchar/wcscasecmp.cpp
+    Compares two strings ignoring case.
+
+*******************************************************************************/
+
+#include <wchar.h>
+#include <wctype.h>
+
+extern "C"
+int wcscasecmp(const wchar_t* a, const wchar_t* b)
+{
+	while ( true )
+	{
+		wchar_t ac = towlower(*a++), bc = towlower(*b++);
+		if ( ac == L'\0' && bc == L'\0' )
+			return 0;
+		if ( ac < bc )
+			return -1;
+		if ( ac > bc )
+			return 1;
+	}
+}