diff --git a/lib/oxsdatatypes/src/date_time.rs b/lib/oxsdatatypes/src/date_time.rs
index 1acb2197..04e4a388 100644
--- a/lib/oxsdatatypes/src/date_time.rs
+++ b/lib/oxsdatatypes/src/date_time.rs
@@ -2308,7 +2308,7 @@ fn timezone_frag(input: &str) -> Result<(TimezoneOffset, &str), ParseDateTimeErr
 
     Ok((
         TimezoneOffset::new(sign * (hours * 60 + i16::from(minutes)))
-            .map_err(|e| ParseDateTimeError::InvalidTimezone(e))?,
+            .map_err(ParseDateTimeError::InvalidTimezone)?,
         input,
     ))
 }
diff --git a/lib/spargebra/src/parser.rs b/lib/spargebra/src/parser.rs
index ecd980a4..df97fc6b 100644
--- a/lib/spargebra/src/parser.rs
+++ b/lib/spargebra/src/parser.rs
@@ -17,13 +17,13 @@ use std::str::FromStr;
 /// Parses a SPARQL query with an optional base IRI to resolve relative IRIs in the query.
 pub fn parse_query(query: &str, base_iri: Option<&str>) -> Result<Query, ParseError> {
     let mut state = ParserState::from_base_iri(base_iri)?;
-    parser::QueryUnit(query, &mut state).map_err(|e| ParseError::Parser(e))
+    parser::QueryUnit(query, &mut state).map_err(ParseError::Parser)
 }
 
 /// Parses a SPARQL update with an optional base IRI to resolve relative IRIs in the query.
 pub fn parse_update(update: &str, base_iri: Option<&str>) -> Result<Update, ParseError> {
     let mut state = ParserState::from_base_iri(base_iri)?;
-    let operations = parser::UpdateInit(update, &mut state).map_err(|e| ParseError::Parser(e))?;
+    let operations = parser::UpdateInit(update, &mut state).map_err(ParseError::Parser)?;
     Ok(Update {
         operations,
         base_iri: state.base_iri,
@@ -667,7 +667,7 @@ impl ParserState {
     pub(crate) fn from_base_iri(base_iri: Option<&str>) -> Result<Self, ParseError> {
         Ok(Self {
             base_iri: if let Some(base_iri) = base_iri {
-                Some(Iri::parse(base_iri.to_owned()).map_err(|e| ParseError::InvalidBaseIri(e))?)
+                Some(Iri::parse(base_iri.to_owned()).map_err(ParseError::InvalidBaseIri)?)
             } else {
                 None
             },