diff --git a/integration/hurl/tests_error_parser/hexdigit.err b/integration/hurl/tests_error_parser/hexdigit.err
new file mode 100644
index 000000000..b4d9ef66f
--- /dev/null
+++ b/integration/hurl/tests_error_parser/hexdigit.err
@@ -0,0 +1,7 @@
+error: Parsing hexadecimal number
+  --> tests_error_parser/hexdigit.hurl:2:17
+   |
+ 2 | {"smiley":"\uf64"}
+   |                 ^ expecting a valid hexadecimal number
+   |
+
diff --git a/integration/hurl/tests_error_parser/hexdigit.exit b/integration/hurl/tests_error_parser/hexdigit.exit
new file mode 100644
index 000000000..d8263ee98
--- /dev/null
+++ b/integration/hurl/tests_error_parser/hexdigit.exit
@@ -0,0 +1 @@
+2
\ No newline at end of file
diff --git a/integration/hurl/tests_error_parser/hexdigit.hurl b/integration/hurl/tests_error_parser/hexdigit.hurl
new file mode 100644
index 000000000..8dcd53407
--- /dev/null
+++ b/integration/hurl/tests_error_parser/hexdigit.hurl
@@ -0,0 +1,3 @@
+POST http://localhost:8000/data
+{"smiley":"\uf64"}
+HTTP 200
diff --git a/integration/hurl/tests_error_parser/hexdigit.ps1 b/integration/hurl/tests_error_parser/hexdigit.ps1
new file mode 100644
index 000000000..b7f59a491
--- /dev/null
+++ b/integration/hurl/tests_error_parser/hexdigit.ps1
@@ -0,0 +1,3 @@
+Set-StrictMode -Version latest
+$ErrorActionPreference = 'Stop'
+hurl tests_error_parser/hexdigit.hurl
diff --git a/integration/hurl/tests_error_parser/hexdigit.sh b/integration/hurl/tests_error_parser/hexdigit.sh
new file mode 100755
index 000000000..e539967d0
--- /dev/null
+++ b/integration/hurl/tests_error_parser/hexdigit.sh
@@ -0,0 +1,3 @@
+#!/bin/bash
+set -Eeuo pipefail
+hurl tests_error_parser/hexdigit.hurl
diff --git a/packages/hurl_core/src/error/mod.rs b/packages/hurl_core/src/error/mod.rs
index 4af2ef999..5ae981e78 100644
--- a/packages/hurl_core/src/error/mod.rs
+++ b/packages/hurl_core/src/error/mod.rs
@@ -42,6 +42,7 @@ impl Error for parser::Error {
             ParseError::FileContentType => "Parsing file content type".to_string(),
             ParseError::Filename => "Parsing filename".to_string(),
             ParseError::GraphQlVariables => "Parsing GraphQL variables".to_string(),
+            ParseError::HexDigit => "Parsing hexadecimal number".to_string(),
             ParseError::InvalidCookieAttribute => "Parsing cookie attribute".to_string(),
             ParseError::Json(_) => "Parsing JSON".to_string(),
             ParseError::JsonPathExpr => "Parsing JSONPath expression".to_string(),
@@ -65,7 +66,6 @@ impl Error for parser::Error {
             ParseError::Xml => "Parsing XML".to_string(),
             // TODO: implement all variants
             // _ => ,
-            ParseError::HexDigit => format!("{self:?}"),
             ParseError::InvalidOption => format!("{self:?}"),
             ParseError::Unicode => format!("{self:?}"),
             ParseError::Url => format!("{self:?}"),
@@ -73,7 +73,7 @@ impl Error for parser::Error {
     }
 
     fn fixme(&self) -> String {
-        match self.inner.clone() {
+        match &self.inner {
             ParseError::DuplicateSection => "the section is already defined".to_string(),
             ParseError::EscapeChar => "the escaping sequence is not valid".to_string(),
             ParseError::Expecting { value } => format!("expecting '{value}'"),
@@ -82,6 +82,7 @@ impl Error for parser::Error {
             ParseError::GraphQlVariables => {
                 "GraphQL variables is not a valid JSON object".to_string()
             }
+            ParseError::HexDigit => "expecting a valid hexadecimal number".to_string(),
             ParseError::InvalidCookieAttribute => "the cookie attribute is not valid".to_string(),
             ParseError::Json(variant) => match variant {
                 JsonErrorVariant::TrailingComma => "trailing comma is not allowed".to_string(),
@@ -141,7 +142,6 @@ impl Error for parser::Error {
             ParseError::Xml => "invalid XML".to_string(),
             // TODO: implement all variants
             // _ => format!("{self:?}"),
-            ParseError::HexDigit => format!("{self:?}"),
             ParseError::InvalidOption => format!("{self:?}"),
             ParseError::Unicode => format!("{self:?}"),
             ParseError::Url => format!("{self:?}"),