diff --git a/src/d3d11/d3d11_swapchain.cpp b/src/d3d11/d3d11_swapchain.cpp
index d12a251c4..9b3f39ade 100644
--- a/src/d3d11/d3d11_swapchain.cpp
+++ b/src/d3d11/d3d11_swapchain.cpp
@@ -348,7 +348,9 @@ namespace dxvk {
       m_context->bindResourceView(BindingIds::Image, m_swapImageView, nullptr);
       m_context->bindResourceView(BindingIds::Gamma, m_gammaTextureView, nullptr);
 
+      m_context->setSpecConstant(VK_PIPELINE_BIND_POINT_GRAPHICS, 0, m_gammaTextureView != nullptr);
       m_context->draw(3, 1, 0, 0);
+      m_context->setSpecConstant(VK_PIPELINE_BIND_POINT_GRAPHICS, 0, 0);
 
       if (m_hud != nullptr)
         m_hud->render(m_context, info.format, info.imageExtent);
diff --git a/src/dxgi/shaders/dxgi_presenter_frag.frag b/src/dxgi/shaders/dxgi_presenter_frag.frag
index e52a0d765..b014d51d3 100644
--- a/src/dxgi/shaders/dxgi_presenter_frag.frag
+++ b/src/dxgi/shaders/dxgi_presenter_frag.frag
@@ -1,6 +1,6 @@
 #version 450
 
-layout(constant_id = 1) const bool s_gamma_bound = true;
+layout(constant_id = 1249) const bool c_has_gamma = false;
 
 layout(binding = 0) uniform sampler2D s_image;
 layout(binding = 1) uniform sampler1D s_gamma;
@@ -11,7 +11,7 @@ layout(location = 0) out vec4 o_color;
 void main() {
   o_color = texture(s_image, i_texcoord);
   
-  if (s_gamma_bound) {
+  if (c_has_gamma) {
     o_color = vec4(
       texture(s_gamma, o_color.r).r,
       texture(s_gamma, o_color.g).g,