diff --git a/src/rstd/atomic/plain.rs b/src/rstd/atomic/plain.rs
index 3bdfe16..954ccb7 100644
--- a/src/rstd/atomic/plain.rs
+++ b/src/rstd/atomic/plain.rs
@@ -1,5 +1,7 @@
 //! [`Plain`] type for storing raw byte sequnces.
 
+use std::convert::Infallible;
+
 use super::*;
 
 /// Raw bytes storage. Use [`Plain::raw`] to get the data.
@@ -10,18 +12,6 @@ pub struct Plain {
     data: Vec<u8>,
 }
 
-/// This shouldn't happen given [`Deserializer::read_all`] being used for parsing.
-#[derive(Debug)]
-pub enum PlainParseError {}
-
-impl Display for PlainParseError {
-    fn fmt(&self, _f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        match *self {}
-    }
-}
-
-impl Error for PlainParseError {}
-
 impl Serializable for Plain {
     fn serialize(&self, serializer: &mut dyn Serializer) {
         serializer.write(&self.data)
@@ -29,7 +19,7 @@ impl Serializable for Plain {
 }
 
 impl AtomicBase for Plain {
-    type AParseError = PlainParseError;
+    type AParseError = Infallible;
 }
 
 impl ImplMode for Plain {
@@ -65,9 +55,8 @@ mod tests {
     use crate::rstd::*;
 
     #[test]
-    fn can_parse_plain_slice() -> Result<(), PlainParseError> {
-        let plain = Plain::parse_slice(b"slice")?;
+    fn can_parse_plain_slice() {
+        let plain = Plain::parse_slice(b"slice").unwrap();
         assert_eq!(plain.bytes().as_slice(), b"slice");
-        Ok(())
     }
 }