diff --git a/multiarc/CMakeLists.txt b/multiarc/CMakeLists.txt
index dbba098..39d0d70 100644
--- a/multiarc/CMakeLists.txt
+++ b/multiarc/CMakeLists.txt
@@ -85,6 +85,14 @@ set(SOURCES
         src/formats/ha/ha/swdict.c
 )
 
+if(CMAKE_ANDROID_ARCH_ABI STREQUAL "arm64-v8a")
+    set_source_files_properties(
+        src/formats/7z/C/AesOpt.c
+        src/formats/7z/C/Sha1Opt.c
+        src/formats/7z/C/Sha256Opt.c
+        PROPERTIES COMPILE_OPTIONS "-march=armv8-a+crc+crypto")
+endif()
+
 if("${UNRAR}" STREQUAL "lib")
     set(SOURCES
         ${SOURCES}