diff --git a/src/d3d11/d3d11_context.cpp b/src/d3d11/d3d11_context.cpp
index 31fa0070..854a063a 100644
--- a/src/d3d11/d3d11_context.cpp
+++ b/src/d3d11/d3d11_context.cpp
@@ -3201,7 +3201,7 @@ namespace dxvk {
 
     if (topology <= D3D_PRIMITIVE_TOPOLOGY_TRIANGLESTRIP_ADJ) {
       static const std::array<DxvkInputAssemblyState, 14> s_iaStates = {{
-        { }, // D3D_PRIMITIVE_TOPOLOGY_UNDEFINED
+        { VK_PRIMITIVE_TOPOLOGY_MAX_ENUM,       VK_FALSE, 0 },
         { VK_PRIMITIVE_TOPOLOGY_POINT_LIST,     VK_FALSE, 0 },
         { VK_PRIMITIVE_TOPOLOGY_LINE_LIST,      VK_FALSE, 0 },
         { VK_PRIMITIVE_TOPOLOGY_LINE_STRIP,     VK_TRUE,  0 },