diff --git a/boring-sys/build.rs b/boring-sys/build.rs
index edd81dfa..6d795ccc 100644
--- a/boring-sys/build.rs
+++ b/boring-sys/build.rs
@@ -56,6 +56,13 @@ const CMAKE_PARAMS_IOS: &[(&str, &[(&str, &str)])] = &[
             ("CMAKE_OSX_SYSROOT", "iphoneos"),
         ],
     ),
+    (
+        "aarch64-apple-ios-sim",
+        &[
+            ("CMAKE_OSX_ARCHITECTURES", "arm64"),
+            ("CMAKE_OSX_SYSROOT", "iphonesimulator"),
+        ],
+    ),
     (
         "x86_64-apple-ios",
         &[