diff --git a/projects/libsodium.org/package.yml b/projects/libsodium.org/package.yml
index bd68cc38..f0855890 100644
--- a/projects/libsodium.org/package.yml
+++ b/projects/libsodium.org/package.yml
@@ -16,6 +16,9 @@ build:
   script: |
     ./configure --prefix="{{prefix}}"
     make --jobs {{ hw.concurrency }} install
+  env:
+    linux/aarch64:
+      CFLAGS: "$CFLAGS -march=armv8-a+crypto"
 
 test:
   dependencies: