diff --git a/Userland/Libraries/LibCore/Process.cpp b/Userland/Libraries/LibCore/Process.cpp
index 915af3c213d..2c845683800 100644
--- a/Userland/Libraries/LibCore/Process.cpp
+++ b/Userland/Libraries/LibCore/Process.cpp
@@ -90,6 +90,10 @@ ErrorOr<Process> Process::spawn(ProcessSpawnOptions const& options)
                     File::open_mode_to_options(action.mode | Core::File::OpenMode::KeepOnExec),
                     action.permissions));
                 return {};
+            },
+            [&](FileAction::CloseFile const& action) -> ErrorOr<void> {
+                CHECK(posix_spawn_file_actions_addclose(&spawn_actions, action.fd));
+                return {};
             }));
     }
 
diff --git a/Userland/Libraries/LibCore/Process.h b/Userland/Libraries/LibCore/Process.h
index ba7bef16d68..deca16ac403 100644
--- a/Userland/Libraries/LibCore/Process.h
+++ b/Userland/Libraries/LibCore/Process.h
@@ -24,6 +24,10 @@ struct OpenFile {
     mode_t permissions = 0600;
 };
 
+struct CloseFile {
+    int fd { -1 };
+};
+
 // FIXME: Implement other file actions
 
 }
@@ -31,9 +35,9 @@ struct OpenFile {
 struct ProcessSpawnOptions {
     ByteString executable;
     bool search_for_executable_in_path { false };
-    Vector<ByteString> const& arguments = {};
-    Optional<ByteString> working_directory = {};
-    Vector<Variant<FileAction::OpenFile>> const& file_actions = {};
+    Vector<ByteString> const& arguments {};
+    Optional<ByteString> working_directory {};
+    Vector<Variant<FileAction::OpenFile, FileAction::CloseFile>> const& file_actions {};
 };
 
 class Process {