diff --git a/Runtime/World/CScriptActor.cpp b/Runtime/World/CScriptActor.cpp
index fc1ef8e69..3152dd755 100644
--- a/Runtime/World/CScriptActor.cpp
+++ b/Runtime/World/CScriptActor.cpp
@@ -150,8 +150,10 @@ void CScriptActor::PreRender(CStateManager& mgr, const zeus::CFrustum& frustum)
     if (x2e2_24_noThermalHotZ && xe6_27_thermalVisorFlags == 2) {
       if (mgr.GetPlayerState()->GetActiveVisor(mgr) == CPlayerState::EPlayerVisor::Thermal) {
         xb4_drawFlags.x2_flags &= ~3; // Disable Z test/update
+        xb4_drawFlags.m_noZTest = true;
       } else {
         xb4_drawFlags.x2_flags |= 3; // Enable Z test/update
+        xb4_drawFlags.m_noZTest = false;
       }
     }