diff --git a/rpcs3/Emu/RSX/GL/GLRenderTargets.cpp b/rpcs3/Emu/RSX/GL/GLRenderTargets.cpp
index 700d2c8ee1..78925df545 100644
--- a/rpcs3/Emu/RSX/GL/GLRenderTargets.cpp
+++ b/rpcs3/Emu/RSX/GL/GLRenderTargets.cpp
@@ -31,7 +31,8 @@ color_format rsx::internals::surface_color_format_to_gl(rsx::surface_color_forma
 		return{ ::gl::texture::type::f32, ::gl::texture::format::rgba, true, 4, 4 };
 
 	case rsx::surface_color_format::b8:
-		return{ ::gl::texture::type::ubyte, ::gl::texture::format::r, false, 1, 1 };
+		return{ ::gl::texture::type::ubyte, ::gl::texture::format::r, false, 1, 1,
+		{ ::gl::texture::channel::one, ::gl::texture::channel::r, ::gl::texture::channel::r, ::gl::texture::channel::r } };
 
 	case rsx::surface_color_format::g8b8:
 		return{ ::gl::texture::type::ubyte, ::gl::texture::format::rg, false, 2, 1 };
diff --git a/rpcs3/Emu/RSX/VK/VKGSRender.cpp b/rpcs3/Emu/RSX/VK/VKGSRender.cpp
index ec144a6823..5233949309 100644
--- a/rpcs3/Emu/RSX/VK/VKGSRender.cpp
+++ b/rpcs3/Emu/RSX/VK/VKGSRender.cpp
@@ -84,7 +84,10 @@ namespace vk
 		}
 
 		case rsx::surface_color_format::b8:
-			return std::make_pair(VK_FORMAT_R8_UNORM, vk::default_component_map());
+		{
+			VkComponentMapping no_alpha = { VK_COMPONENT_SWIZZLE_R, VK_COMPONENT_SWIZZLE_R, VK_COMPONENT_SWIZZLE_R, VK_COMPONENT_SWIZZLE_ONE };
+			return std::make_pair(VK_FORMAT_R8_UNORM, no_alpha);
+		}
 		
 		case rsx::surface_color_format::g8b8:
 			return std::make_pair(VK_FORMAT_R8G8_UNORM, vk::default_component_map());
@@ -3194,4 +3197,4 @@ void VKGSRender::shell_do_cleanup()
 {
 	//TODO: Guard this
 	m_overlay_cleanup_requests.push_back(0);
-}
\ No newline at end of file
+}