diff --git a/src/microsoft/compiler/dxil_nir_lower_vs_vertex_conversion.c b/src/microsoft/compiler/dxil_nir_lower_vs_vertex_conversion.c
index 6c14ae10404..711ad99ab6d 100644
--- a/src/microsoft/compiler/dxil_nir_lower_vs_vertex_conversion.c
+++ b/src/microsoft/compiler/dxil_nir_lower_vs_vertex_conversion.c
@@ -132,6 +132,12 @@ lower_vs_vertex_conversion_impl(nir_builder *b, nir_instr *instr, void *options)
          return from_10_10_10_2_scaled(b, src, lshift_rgba(b), nir_ushr);
       case PIPE_FORMAT_B10G10R10A2_USCALED:
          return from_10_10_10_2_scaled(b, src, lshift_bgra(b), nir_ushr);
+      case PIPE_FORMAT_R8G8B8A8_USCALED:
+      case PIPE_FORMAT_R16G16B16A16_USCALED:
+         return nir_u2f32(b, &intr->dest.ssa);
+      case PIPE_FORMAT_R8G8B8A8_SSCALED:
+      case PIPE_FORMAT_R16G16B16A16_SSCALED:
+         return nir_i2f32(b, &intr->dest.ssa);
 
       default:
          unreachable("Unsupported emulated vertex format");