diff --git a/prost-derive/src/lib.rs b/prost-derive/src/lib.rs
index d06b079a2..3f8ceb474 100644
--- a/prost-derive/src/lib.rs
+++ b/prost-derive/src/lib.rs
@@ -351,7 +351,7 @@ fn try_enumeration(input: TokenStream) -> Result<TokenStream, Error> {
         impl #impl_generics ::core::convert::TryFrom::<i32> for #ident #ty_generics #where_clause {
             type Error = ::prost::UnknownEnumValue;
 
-            fn try_from(value: i32) -> ::core::result::Result<#ident, Self::Error> {
+            fn try_from(value: i32) -> ::core::result::Result<#ident, ::prost::UnknownEnumValue> {
                 match value {
                     #(#try_from,)*
                     _ => ::core::result::Result::Err(::prost::UnknownEnumValue(value)),
diff --git a/tests/src/enum_keyword_variant.proto b/tests/src/enum_keyword_variant.proto
index 595387084..b5a52a973 100644
--- a/tests/src/enum_keyword_variant.proto
+++ b/tests/src/enum_keyword_variant.proto
@@ -8,6 +8,7 @@ enum Feeding {
   // Careful: code generation resulted in "Self". Now it is "Self_".
   FEEDING_SELF = 2;
   FEEDING_ELSE = 3;
+  FEEDING_ERROR = 4;
 }
 
 enum Grooming {