diff --git a/modules/core/include/opencv2/core/hal/intrin_avx.hpp b/modules/core/include/opencv2/core/hal/intrin_avx.hpp
index 0cf36cf174..54f1c48109 100644
--- a/modules/core/include/opencv2/core/hal/intrin_avx.hpp
+++ b/modules/core/include/opencv2/core/hal/intrin_avx.hpp
@@ -2505,7 +2505,7 @@ inline void v_pack_store(float16_t* ptr, const v_float32x8& a)
     _mm_storeu_si128((__m128i*)ptr, ah);
 }
 
-inline void v256_cleanup() { _mm256_zeroupper(); }
+inline void v256_cleanup() { _mm256_zeroall(); }
 
 //! @name Check SIMD256 support
 //! @{