diff --git a/src/Simd/SimdAmxBf16SynetDeconvolution16bNhwcGemm.cpp b/src/Simd/SimdAmxBf16SynetDeconvolution16bNhwcGemm.cpp
index 9685e983af..6989273989 100644
--- a/src/Simd/SimdAmxBf16SynetDeconvolution16bNhwcGemm.cpp
+++ b/src/Simd/SimdAmxBf16SynetDeconvolution16bNhwcGemm.cpp
@@ -31,7 +31,7 @@
 
 namespace Simd
 {
-#if defined(SIMD_AVX512BW_ENABLE) && defined(SIMD_SYNET_ENABLE) 
+#if (defined(SIMD_AMXBF16_ENABLE) || (defined(SIMD_AVX512BW_ENABLE) && defined(SIMD_AMX_EMULATE)))
     namespace AmxBf16
     {
         typedef Base::SynetDeconvolution16bNhwcGemm::AlgParam AlgParam;