--- a/lib/x86/adler32_impl.h
+++ b/lib/x86/adler32_impl.h
@@ -40,6 +40,7 @@
 #  define USE_AVX512		0
 #  include "adler32_template.h"
 
+#  ifndef LIBDEFLATE_DISABLE_SIMD_ABOVE_SSE2
 #  define adler32_x86_avx2	adler32_x86_avx2
 #  define SUFFIX			   _avx2
 #  define ATTRIBUTES		_target_attribute("avx2")
@@ -47,6 +48,7 @@
 #  define USE_VNNI		0
 #  define USE_AVX512		0
 #  include "adler32_template.h"
+#  endif /* !LIBDEFLATE_DISABLE_SIMD_ABOVE_SSE2 */
 #endif
 
 /*
@@ -61,7 +63,8 @@
  * configure step, so checking the binutils version is not always an option.)
  */
 #if (GCC_PREREQ(12, 1) || CLANG_PREREQ(12, 0, 13000000) || MSVC_PREREQ(1930)) && \
-	!defined(LIBDEFLATE_ASSEMBLER_DOES_NOT_SUPPORT_AVX_VNNI)
+	!defined(LIBDEFLATE_ASSEMBLER_DOES_NOT_SUPPORT_AVX_VNNI) && \
+	!defined(LIBDEFLATE_DISABLE_SIMD_ABOVE_SSE2)
 #  define adler32_x86_avx2_vnni	adler32_x86_avx2_vnni
 #  define SUFFIX			   _avx2_vnni
 #  define ATTRIBUTES		_target_attribute("avx2,avxvnni")