--- a/runtime/ops/signal.rs
+++ b/runtime/ops/signal.rs
@@ -97,7 +97,7 @@
   }
 }
 
-#[cfg(target_os = "linux")]
+#[cfg(any(target_os = "linux", target_os = "android"))]
 pub fn signal_str_to_int(s: &str) -> Result<libc::c_int, AnyError> {
   match s {
     "SIGHUP" => Ok(1),