diff --git a/Userland/Utilities/CMakeLists.txt b/Userland/Utilities/CMakeLists.txt
index 9079887ebf..19ee1a8193 100644
--- a/Userland/Utilities/CMakeLists.txt
+++ b/Userland/Utilities/CMakeLists.txt
@@ -145,6 +145,7 @@ target_link_libraries(userdel PRIVATE LibFileSystem)
 target_link_libraries(wallpaper PRIVATE LibGfx LibGUI)
 target_link_libraries(wasm PRIVATE LibWasm LibLine LibJS)
 target_link_libraries(watch PRIVATE LibFileSystem)
+target_link_libraries(which PRIVATE LibFileSystem)
 target_link_libraries(wsctl PRIVATE LibGUI LibIPC)
 target_link_libraries(xml PRIVATE LibXML)
 target_link_libraries(xzcat PRIVATE LibCompress)
diff --git a/Userland/Utilities/which.cpp b/Userland/Utilities/which.cpp
index c987a4d538..3407652cb2 100644
--- a/Userland/Utilities/which.cpp
+++ b/Userland/Utilities/which.cpp
@@ -5,8 +5,8 @@
  */
 
 #include <LibCore/ArgsParser.h>
-#include <LibCore/DeprecatedFile.h>
 #include <LibCore/System.h>
+#include <LibFileSystem/FileSystem.h>
 #include <stdio.h>
 #include <unistd.h>
 
@@ -20,8 +20,8 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     args_parser.add_positional_argument(filename, "Name of executable", "executable");
     args_parser.parse(arguments);
 
-    auto fullpath = Core::DeprecatedFile::resolve_executable_from_environment(filename);
-    if (!fullpath.has_value()) {
+    auto fullpath = FileSystem::resolve_executable_from_environment(filename);
+    if (fullpath.is_error()) {
         warnln("no '{}' in path", filename);
         return 1;
     }