diff --git a/framework_lib/src/smbios.rs b/framework_lib/src/smbios.rs
index 2c5aa0a..d01e340 100644
--- a/framework_lib/src/smbios.rs
+++ b/framework_lib/src/smbios.rs
@@ -268,6 +268,7 @@ pub fn get_platform() -> Option<Platform> {
     platform
 }
 
+#[cfg(target_os = "freebsd")]
 fn kenv_get(name: &str) -> nix::Result<String> {
     use libc::{c_int, KENV_GET, KENV_MVALLEN};
     use nix::errno::Errno;