2 files changed, 8 insertions, 3 deletions
diff --git a/ext/fs/30_fs.js b/ext/fs/30_fs.js
index f7c07f26a..a149f653d 100644
--- a/ext/fs/30_fs.js
+++ b/ext/fs/30_fs.js
@@ -244,7 +244,7 @@ function createByteStruct(types) {
   // types can be "date", "bool" or "u64".
   let offset = 0;
   let str =
-    'const unix = Deno.build.os === "darwin" || Deno.build.os === "linux"; return {';
+    'const unix = Deno.build.os === "darwin" || Deno.build.os === "linux" || Deno.build.os === "openbsd" || Deno.build.os === "freebsd"; return {';
   const typeEntries = ObjectEntries(types);
   for (let i = 0; i < typeEntries.length; ++i) {
     let { 0: name, 1: type } = typeEntries[i];
@@ -309,7 +309,8 @@ const { 0: statStruct, 1: statBuf } = createByteStruct({
 });
 
 function parseFileInfo(response) {
-  const unix = core.build.os === "darwin" || core.build.os === "linux";
+  const unix = core.build.os === "darwin" || core.build.os === "linux" ||
+    core.build.os === "freebsd" || core.build.os === "openbsd";
   return {
     isFile: response.isFile,
     isDirectory: response.isDirectory,
diff --git a/ext/fs/std_fs.rs b/ext/fs/std_fs.rs
index 9baf74a2a..b2923abb1 100644
--- a/ext/fs/std_fs.rs
+++ b/ext/fs/std_fs.rs
@@ -66,7 +66,11 @@ impl FileSystem for RealFs {
     {
       Ok(r.bits())
     }
-    #[cfg(target_os = "macos")]
+    #[cfg(any(
+      target_os = "macos",
+      target_os = "openbsd",
+      target_os = "freebsd"
+    ))]
     {
       Ok(r.bits() as u32)
     }