diff --git a/src/pam/rpassword.rs b/src/pam/rpassword.rs
index 3b97006c..85239528 100644
--- a/src/pam/rpassword.rs
+++ b/src/pam/rpassword.rs
@@ -105,7 +105,9 @@ fn read_unbuffered(source: &mut dyn io::Read) -> io::Result<PamBuffer> {
 fn erase_feedback(sink: &mut dyn io::Write, i: usize) {
     const BACKSPACE: u8 = 0x08;
     for _ in 0..i {
-        let _ = sink.write(&[BACKSPACE, b' ', BACKSPACE]);
+        if sink.write(&[BACKSPACE, b' ', BACKSPACE]).is_err() {
+            return;
+        }
     }
 }