diff --git a/payjoin/src/uri/error.rs b/payjoin/src/uri/error.rs
index cce26ecb..eb1636e5 100644
--- a/payjoin/src/uri/error.rs
+++ b/payjoin/src/uri/error.rs
@@ -7,7 +7,7 @@ pub struct PjParseError(InternalPjParseError);
 #[derive(Debug)]
 pub(crate) enum InternalPjParseError {
     BadPjOs,
-    MultipleParams(&'static str),
+    DuplicateParams(&'static str),
     MissingEndpoint,
     NotUtf8,
     BadEndpoint,
@@ -24,7 +24,7 @@ impl std::fmt::Display for PjParseError {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         match &self.0 {
             InternalPjParseError::BadPjOs => write!(f, "Bad pjos parameter"),
-            InternalPjParseError::MultipleParams(param) => {
+            InternalPjParseError::DuplicateParams(param) => {
                 write!(f, "Multiple instances of parameter '{}'", param)
             }
             InternalPjParseError::MissingEndpoint => write!(f, "Missing payjoin endpoint"),
diff --git a/payjoin/src/uri/mod.rs b/payjoin/src/uri/mod.rs
index e26c30ad..89d96b5c 100644
--- a/payjoin/src/uri/mod.rs
+++ b/payjoin/src/uri/mod.rs
@@ -244,7 +244,7 @@ impl<'a> bip21::de::DeserializationState<'a> for DeserializationState {
                 Ok(bip21::de::ParamKind::Known)
             }
             #[cfg(feature = "v2")]
-            "ohttp" => Err(InternalPjParseError::MultipleParams("ohttp").into()),
+            "ohttp" => Err(InternalPjParseError::DuplicateParams("ohttp").into()),
             "pj" if self.pj.is_none() => {
                 let endpoint = Cow::try_from(value).map_err(|_| InternalPjParseError::NotUtf8)?;
                 let url = Url::parse(&endpoint).map_err(|_| InternalPjParseError::BadEndpoint)?;
@@ -252,7 +252,7 @@ impl<'a> bip21::de::DeserializationState<'a> for DeserializationState {
 
                 Ok(bip21::de::ParamKind::Known)
             }
-            "pj" => Err(InternalPjParseError::MultipleParams("pj").into()),
+            "pj" => Err(InternalPjParseError::DuplicateParams("pj").into()),
             "pjos" if self.pjos.is_none() => {
                 match &*Cow::try_from(value).map_err(|_| InternalPjParseError::BadPjOs)? {
                     "0" => self.pjos = Some(false),
@@ -261,7 +261,7 @@ impl<'a> bip21::de::DeserializationState<'a> for DeserializationState {
                 }
                 Ok(bip21::de::ParamKind::Known)
             }
-            "pjos" => Err(InternalPjParseError::MultipleParams("pjos").into()),
+            "pjos" => Err(InternalPjParseError::DuplicateParams("pjos").into()),
             _ => Ok(bip21::de::ParamKind::Unknown),
         }
     }