diff --git a/Source/Core/VideoBackends/D3D/Render.cpp b/Source/Core/VideoBackends/D3D/Render.cpp
index dd6fafcdb9..189b4466a4 100644
--- a/Source/Core/VideoBackends/D3D/Render.cpp
+++ b/Source/Core/VideoBackends/D3D/Render.cpp
@@ -1030,7 +1030,7 @@ void Renderer::ApplyState(bool bUseDstAlpha)
 	for (unsigned int stage = 0; stage < 8; stage++)
 	{
 		// TODO: cache SamplerState directly, not d3d object
-		gx_state.sampler[stage].max_anisotropy = 1 << g_ActiveConfig.iMaxAnisotropy;
+		gx_state.sampler[stage].max_anisotropy = UINT64_C(1) << g_ActiveConfig.iMaxAnisotropy;
 		D3D::stateman->SetSampler(stage, gx_state_cache.Get(gx_state.sampler[stage]));
 	}