diff --git a/pcsx2/GS/GSState.cpp b/pcsx2/GS/GSState.cpp
index 6c40a811bb..051fa68742 100644
--- a/pcsx2/GS/GSState.cpp
+++ b/pcsx2/GS/GSState.cpp
@@ -19,6 +19,7 @@
 #include "GSUtil.h"
 
 #include <algorithm> // clamp
+#include <cfloat> // FLT_MAX
 
 int GSState::s_n = 0;