diff --git a/libc/Android.mk b/libc/Android.mk
index 77c77c8..ee8981a 100644
--- a/libc/Android.mk
+++ b/libc/Android.mk
@@ -481,7 +481,6 @@
     upstream-openbsd/lib/libc/string/strtok.c \
     upstream-openbsd/lib/libc/string/wcslcpy.c \
     upstream-openbsd/lib/libc/string/wcsstr.c \
-    upstream-openbsd/lib/libc/string/wcswcs.c \
     upstream-openbsd/lib/libc/string/wcswidth.c \
 
 libc_arch_static_src_files := \
diff --git a/libc/bionic/ndk_cruft.cpp b/libc/bionic/ndk_cruft.cpp
index 1284b9a..ed60ea4 100644
--- a/libc/bionic/ndk_cruft.cpp
+++ b/libc/bionic/ndk_cruft.cpp
@@ -40,6 +40,7 @@
 #include <sys/types.h>
 #include <sys/wait.h>
 #include <unistd.h>
+#include <wchar.h>
 
 // These were accidentally declared in <unistd.h> because we stupidly used to inline
 // getpagesize() and __getpageshift(). Needed for backwards compatibility with old NDK apps.
@@ -221,4 +222,8 @@
   return syscall(__NR_tkill, tid, sig);
 }
 
+extern "C" wchar_t* wcswcs(wchar_t* haystack, wchar_t* needle) {
+  return wcsstr(haystack, needle);
+}
+
 #endif
diff --git a/libc/include/wchar.h b/libc/include/wchar.h
index af7593f..d50e9ec 100644
--- a/libc/include/wchar.h
+++ b/libc/include/wchar.h
@@ -138,7 +138,6 @@
 extern long double wcstold(const wchar_t*, wchar_t**);
 extern unsigned long wcstoul(const wchar_t*, wchar_t**, int);
 extern unsigned long long wcstoull(const wchar_t*, wchar_t**, int);
-extern wchar_t          *wcswcs(const wchar_t *, const wchar_t *);
 extern int               wcswidth(const wchar_t *, size_t);
 extern size_t            wcsxfrm(wchar_t *, const wchar_t *, size_t);
 extern int               wctob(wint_t);
diff --git a/libc/upstream-openbsd/lib/libc/string/wcswcs.c b/libc/upstream-openbsd/lib/libc/string/wcswcs.c
deleted file mode 100644
index bd35605..0000000
--- a/libc/upstream-openbsd/lib/libc/string/wcswcs.c
+++ /dev/null
@@ -1,5 +0,0 @@
-/*	$OpenBSD: wcswcs.c,v 1.1 2005/04/13 16:35:58 espie Exp $	*/
-/* $NetBSD: wcswcs.c,v 1.1 2003/03/05 20:18:17 tshiozak Exp $ */
-
-#define WCSWCS
-#include "wcsstr.c"
diff --git a/tests/wchar_test.cpp b/tests/wchar_test.cpp
index 5a250a2..e76026f 100644
--- a/tests/wchar_test.cpp
+++ b/tests/wchar_test.cpp
@@ -221,7 +221,7 @@
   ASSERT_LT(WCHAR_MIN, WCHAR_MAX);
 }
 
-TEST(wchar, wcsstr_wcswcs) {
+TEST(wchar, wcsstr) {
   const wchar_t* haystack = L"matches hello world, not the second hello world";
   const wchar_t* empty_needle = L"";
   const wchar_t* good_needle = L"ll";
@@ -230,10 +230,6 @@
   ASSERT_EQ(haystack, wcsstr(haystack, empty_needle));
   ASSERT_EQ(&haystack[10], wcsstr(haystack, good_needle));
   ASSERT_EQ(NULL, wcsstr(haystack, bad_needle));
-
-  ASSERT_EQ(haystack, wcswcs(haystack, empty_needle));
-  ASSERT_EQ(&haystack[10], wcswcs(haystack, good_needle));
-  ASSERT_EQ(NULL, wcswcs(haystack, bad_needle));
 }
 
 TEST(wchar, mbtowc) {