diff --git a/fat-arm64.c b/fat-arm64.c
index f2b8493d..48160b16 100644
--- a/fat-arm64.c
+++ b/fat-arm64.c
@@ -46,6 +46,10 @@
 #  include <asm/hwcap.h>
 #  include <sys/auxv.h>
 # endif
+#elif defined(__FreeBSD__)
+# define USE_GETAUXVAL 1
+# include <sys/auxv.h>
+#endif
 #elif defined(__OpenBSD__)
 # include <sys/sysctl.h>
 # include <machine/cpu.h>
@@ -117,7 +121,14 @@ get_arm64_features (struct arm64_features *features)
   else
     {
 #if USE_GETAUXVAL
+#if defined (__FreeBSD__)
+    unsigned long hwcap;
+    if(elf_aux_info(AT_HWCAP, &hwcap, sizeof(unsigned long)) != 0) {
+        hwcap = 0;
+    }
+#else
       unsigned long hwcap = getauxval(AT_HWCAP);
+#endif
       features->have_aes
 	= ((hwcap & (HWCAP_ASIMD | HWCAP_AES)) == (HWCAP_ASIMD | HWCAP_AES));
       features->have_pmull