diff --git a/pcsx2/GSDumpReplayer.cpp b/pcsx2/GSDumpReplayer.cpp
index 426bb8ff2d..b037c55d0d 100644
--- a/pcsx2/GSDumpReplayer.cpp
+++ b/pcsx2/GSDumpReplayer.cpp
@@ -1,3 +1,18 @@
+/*  PCSX2 - PS2 Emulator for PCs
+ *  Copyright (C) 2002-2022  PCSX2 Dev Team
+ *
+ *  PCSX2 is free software: you can redistribute it and/or modify it under the terms
+ *  of the GNU Lesser General Public License as published by the Free Software Found-
+ *  ation, either version 3 of the License, or (at your option) any later version.
+ *
+ *  PCSX2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ *  PURPOSE.  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with PCSX2.
+ *  If not, see <http://www.gnu.org/licenses/>.
+ */
+
 #include "PrecompiledHeader.h"
 
 #include <atomic>
diff --git a/pcsx2/GSDumpReplayer.h b/pcsx2/GSDumpReplayer.h
index 1eca2497f2..f77ea56705 100644
--- a/pcsx2/GSDumpReplayer.h
+++ b/pcsx2/GSDumpReplayer.h
@@ -1,5 +1,24 @@
+/*  PCSX2 - PS2 Emulator for PCs
+ *  Copyright (C) 2002-2022  PCSX2 Dev Team
+ *
+ *  PCSX2 is free software: you can redistribute it and/or modify it under the terms
+ *  of the GNU Lesser General Public License as published by the Free Software Found-
+ *  ation, either version 3 of the License, or (at your option) any later version.
+ *
+ *  PCSX2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ *  PURPOSE.  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with PCSX2.
+ *  If not, see <http://www.gnu.org/licenses/>.
+ */
+
 #pragma once
 
+#include "PCSX2Base.h"
+#include <string>
+#include <vector>
+
 namespace GSDumpReplayer
 {
 bool IsReplayingDump();