diff --git a/src/microsoft/compiler/nir_to_dxil.c b/src/microsoft/compiler/nir_to_dxil.c
index 9121598ce09..555b7c1db36 100644
--- a/src/microsoft/compiler/nir_to_dxil.c
+++ b/src/microsoft/compiler/nir_to_dxil.c
@@ -94,6 +94,7 @@ nir_options = {
    .lower_fneg = true,
    .lower_ffma16 = true,
    .lower_ffma32 = true,
+   .float_mul_add64 = nir_float_muladd_support_has_ffma,
    .lower_isign = true,
    .lower_fsign = true,
    .lower_iabs = true,
@@ -180,8 +181,10 @@ dxil_get_nir_compiler_options(nir_shader_compiler_options *options,
       options->lower_unpack_64_2x32_split = false;
       options->lower_int64_options = ~0;
    }
-   if (!(supported_float_sizes & 64))
+   if (!(supported_float_sizes & 64)) {
       options->lower_doubles_options = ~0;
+      options->float_mul_add64 = 0;
+   }
    if (shader_model_max >= SHADER_MODEL_6_4) {
       options->has_sdot_4x8 = true;
       options->has_udot_4x8 = true;
@@ -2995,6 +2998,7 @@ emit_alu(struct ntd_context *ctx, nir_alu_instr *alu)
    case nir_op_fsqrt: return emit_unary_intin(ctx, alu, DXIL_INTR_SQRT, src[0]);
    case nir_op_fmax: return emit_binary_intin(ctx, alu, DXIL_INTR_FMAX, src[0], src[1]);
    case nir_op_fmin: return emit_binary_intin(ctx, alu, DXIL_INTR_FMIN, src[0], src[1]);
+   case nir_op_ffma:
    case nir_op_ffma_old:
       if (alu->def.bit_size == 64)
          ctx->mod.feats.dx11_1_double_extensions = 1;