diff --git a/vm/src/stdlib/os.rs b/vm/src/stdlib/os.rs
index 9a901b36f..5eddc682f 100644
--- a/vm/src/stdlib/os.rs
+++ b/vm/src/stdlib/os.rs
@@ -1217,9 +1217,7 @@ fn extend_module_platform_specific(vm: &VirtualMachine, module: PyObjectRef) ->
         "ttyname" => ctx.new_rustfunc(os_ttyname),
         "SEEK_SET" => ctx.new_int(Whence::SeekSet as i8),
         "SEEK_CUR" => ctx.new_int(Whence::SeekCur as i8),
-        "SEEK_END" => ctx.new_int(Whence::SeekEnd as i8),
-        "SEEK_DATA" => ctx.new_int(Whence::SeekData as i8),
-        "SEEK_HOLE" => ctx.new_int(Whence::SeekHole as i8)
+        "SEEK_END" => ctx.new_int(Whence::SeekEnd as i8)
     });
 
     #[cfg(not(target_os = "redox"))]
@@ -1231,6 +1229,12 @@ fn extend_module_platform_specific(vm: &VirtualMachine, module: PyObjectRef) ->
         "openpty" => ctx.new_rustfunc(os_openpty),
     });
 
+    #[cfg(not(target_os = "macos"))]
+    extend_module!(vm, module, {
+        "SEEK_DATA" => ctx.new_int(Whence::SeekData as i8),
+        "SEEK_HOLE" => ctx.new_int(Whence::SeekHole as i8)
+    });
+
     module
 }