diff --git a/src/strategies/missing-intel-intrinsics.h b/src/strategies/missing-intel-intrinsics.h
index f132f033..532f59cf 100644
--- a/src/strategies/missing-intel-intrinsics.h
+++ b/src/strategies/missing-intel-intrinsics.h
@@ -3,6 +3,7 @@
 
 #include <immintrin.h>
 
+#ifndef __OPTIMIZE__
 // Old Visual Studio headers lack the bsrli variant
 #ifndef _mm_bsrli_si128
   #define _mm_bsrli_si128(a, imm8) _mm_srli_si128((a), (imm8))
@@ -20,9 +21,11 @@
 
 // Some Visual Studio headers apparently lack these pseudoinstructions
 #if COMPILE_INTEL_AVX2
+#ifdef __AVX512F__
   #ifndef _mm256_bsrli_epi128
     #define _mm256_bsrli_epi128(a, imm8) _mm256_srli_si256((a), (imm8))
   #endif
+#endif
   #ifndef _mm256_insert_epi32
     #define _mm256_insert_epi32(a, i, index) (_mm256_blend_epi32((a), _mm256_set1_epi32(i), (1 << (index))))
   #endif
@@ -31,5 +34,6 @@
     #define _mm256_extract_epi32(a, index) (_mm_extract_epi32(_mm256_extracti128_si256((a), (index) >> 2), (index) & 3))
   #endif
 #endif
+#endif // __OPTIMIZE__
 
 #endif