diff --git a/Utilities/StrFmt.cpp b/Utilities/StrFmt.cpp
index cc20761d60..6e79d92d07 100644
--- a/Utilities/StrFmt.cpp
+++ b/Utilities/StrFmt.cpp
@@ -1,5 +1,6 @@
 #include "stdafx.h"
 #include "StrFmt.h"
+#include <wx/string.h>
 
 extern const std::string fmt::placeholder = "???";
 
diff --git a/Utilities/StrFmt.h b/Utilities/StrFmt.h
index fb8e2ff1f7..de78cb74a8 100644
--- a/Utilities/StrFmt.h
+++ b/Utilities/StrFmt.h
@@ -1,5 +1,5 @@
 #pragma once
-#include <wx/string.h>
+class wxString;
 
 #if defined(_MSC_VER)
 #define snprintf _snprintf
diff --git a/rpcs3/Emu/SysCalls/Modules/cellResc.cpp b/rpcs3/Emu/SysCalls/Modules/cellResc.cpp
index d33458153c..40fd35cc27 100644
--- a/rpcs3/Emu/SysCalls/Modules/cellResc.cpp
+++ b/rpcs3/Emu/SysCalls/Modules/cellResc.cpp
@@ -3,7 +3,6 @@
 #include "Emu/System.h"
 #include "Emu/SysCalls/Modules.h"
 
-#include <wx/math.h>
 #include "cellSysutil.h"
 #include "Emu/RSX/sysutil_video.h"
 #include "Emu/RSX/GSManager.h"
@@ -15,7 +14,8 @@ static const float
 PICTURE_SIZE = (1.0f),
 UV_DELTA_PS = (1.f / 8.f),
 UV_DELTA_LB = (1.f / 6.f),
-XY_DELTA_LB = (1.f / 8.f);
+XY_DELTA_LB = (1.f / 8.f),
+M_PI = 3.1415926535897932384626433832795;
 
 void BuildupVertexBufferNR()
 {