diff --git a/Userland/Libraries/LibC/CMakeLists.txt b/Userland/Libraries/LibC/CMakeLists.txt
index f5d9722bc7..99a640b194 100644
--- a/Userland/Libraries/LibC/CMakeLists.txt
+++ b/Userland/Libraries/LibC/CMakeLists.txt
@@ -56,6 +56,7 @@ set(LIBC_SOURCES
     utime.cpp
     utsname.cpp
     wchar.cpp
+    wctype.cpp
 )
 
 file(GLOB AK_SOURCES CONFIGURE_DEPENDS "../../../AK/*.cpp")
diff --git a/Userland/Libraries/LibC/wchar.h b/Userland/Libraries/LibC/wchar.h
index 551b8b2300..35b192f939 100644
--- a/Userland/Libraries/LibC/wchar.h
+++ b/Userland/Libraries/LibC/wchar.h
@@ -16,6 +16,7 @@ __BEGIN_DECLS
 #endif
 
 typedef __WINT_TYPE__ wint_t;
+typedef unsigned long int wctype_t;
 
 size_t wcslen(const wchar_t*);
 wchar_t* wcscpy(wchar_t*, const wchar_t*);
diff --git a/Userland/Libraries/LibC/wctype.cpp b/Userland/Libraries/LibC/wctype.cpp
new file mode 100644
index 0000000000..7a68b7c389
--- /dev/null
+++ b/Userland/Libraries/LibC/wctype.cpp
@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2021, the SerenityOS developers
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <AK/Format.h>
+#include <assert.h>
+#include <wctype.h>
+
+extern "C" {
+
+wctype_t wctype(const char*)
+{
+    dbgln("FIXME: Implement wctype()");
+    TODO();
+}
+
+int iswctype(wint_t, wctype_t)
+{
+    dbgln("FIXME: Implement iswctype()");
+    TODO();
+}
+}
diff --git a/Userland/Libraries/LibC/wctype.h b/Userland/Libraries/LibC/wctype.h
new file mode 100644
index 0000000000..6d91f8cc71
--- /dev/null
+++ b/Userland/Libraries/LibC/wctype.h
@@ -0,0 +1,16 @@
+/*
+ * Copyright (c) 2021, the SerenityOS developers
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <wchar.h>
+
+__BEGIN_DECLS
+
+wctype_t wctype(const char* name);
+int iswctype(wint_t wc, wctype_t desc);
+
+__END_DECLS