diff --git a/Userland/Libraries/LibC/wchar.cpp b/Userland/Libraries/LibC/wchar.cpp
index 11b17ed999..42cdb4cd61 100644
--- a/Userland/Libraries/LibC/wchar.cpp
+++ b/Userland/Libraries/LibC/wchar.cpp
@@ -429,4 +429,10 @@ unsigned long long wcstoull(const wchar_t*, wchar_t**, int)
     dbgln("TODO: Implement wcstoull()");
     TODO();
 }
+
+float wcstof(const wchar_t*, wchar_t**)
+{
+    dbgln("TODO: Implement wcstof()");
+    TODO();
+}
 }
diff --git a/Userland/Libraries/LibC/wchar.h b/Userland/Libraries/LibC/wchar.h
index f8e2b31374..41441c419c 100644
--- a/Userland/Libraries/LibC/wchar.h
+++ b/Userland/Libraries/LibC/wchar.h
@@ -49,5 +49,6 @@ wchar_t* wmemset(wchar_t*, wchar_t, size_t);
 wchar_t* wmemmove(wchar_t*, const wchar_t*, size_t);
 unsigned long wcstoul(const wchar_t*, wchar_t**, int);
 unsigned long long wcstoull(const wchar_t*, wchar_t**, int);
+float wcstof(const wchar_t*, wchar_t**);
 
 __END_DECLS