diff --git a/Libraries/LibIPC/TransportSocket.cpp b/Libraries/LibIPC/TransportSocket.cpp
index 8241dcfef8d..b28be78d966 100644
--- a/Libraries/LibIPC/TransportSocket.cpp
+++ b/Libraries/LibIPC/TransportSocket.cpp
@@ -8,11 +8,21 @@
 #include <AK/NonnullOwnPtr.h>
 #include <LibCore/Socket.h>
 #include <LibCore/System.h>
-#include <LibIPC/File.h>
 #include <LibIPC/TransportSocket.h>
 
 namespace IPC {
 
+AutoCloseFileDescriptor::AutoCloseFileDescriptor(int fd)
+    : m_fd(fd)
+{
+}
+
+AutoCloseFileDescriptor::~AutoCloseFileDescriptor()
+{
+    if (m_fd != -1)
+        (void)Core::System::close(m_fd);
+}
+
 void SendQueue::enqueue_message(Vector<u8>&& bytes, Vector<int>&& fds)
 {
     Threading::MutexLocker locker(m_mutex);
diff --git a/Libraries/LibIPC/TransportSocket.h b/Libraries/LibIPC/TransportSocket.h
index 0469c1d8b07..3304c2b911d 100644
--- a/Libraries/LibIPC/TransportSocket.h
+++ b/Libraries/LibIPC/TransportSocket.h
@@ -10,6 +10,7 @@
 #include <AK/MemoryStream.h>
 #include <AK/Queue.h>
 #include <LibCore/Socket.h>
+#include <LibIPC/File.h>
 #include <LibThreading/ConditionVariable.h>
 #include <LibThreading/MutexProtected.h>
 #include <LibThreading/RWLock.h>
@@ -19,16 +20,8 @@ namespace IPC {
 
 class AutoCloseFileDescriptor : public RefCounted<AutoCloseFileDescriptor> {
 public:
-    AutoCloseFileDescriptor(int fd)
-        : m_fd(fd)
-    {
-    }
-
-    ~AutoCloseFileDescriptor()
-    {
-        if (m_fd != -1)
-            (void)Core::System::close(m_fd);
-    }
+    AutoCloseFileDescriptor(int fd);
+    ~AutoCloseFileDescriptor();
 
     int value() const { return m_fd; }