diff --git a/Cargo.toml b/Cargo.toml
index 307a3ca..71c61b5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "activitystreams"
 description = "A set of core types and traits for activitystreams data"
-version = "0.7.0-alpha.23"
+version = "0.7.0-alpha.24"
 license = "GPL-3.0"
 authors = ["asonix <asonix@asonix.dog>"]
 repository = "https://git.asonix.dog/asonix/activitystreams"
diff --git a/src/base.rs b/src/base.rs
index 5d97514..f373ab5 100644
--- a/src/base.rs
+++ b/src/base.rs
@@ -263,7 +263,7 @@ pub trait BaseExt: AsBase {
         let authority = self
             .id_unchecked()
             .and_then(|id| id.authority_components())
-            .ok_or(CheckError(Some(iri.as_ref().to_owned())))?;
+            .ok_or_else(|| CheckError(Some(iri.as_ref().to_owned())))?;
         check(iri, authority.host(), authority.port())
     }
 
diff --git a/src/checked.rs b/src/checked.rs
index 4cf4a99..0e954f4 100644
--- a/src/checked.rs
+++ b/src/checked.rs
@@ -23,7 +23,7 @@ pub(crate) fn check<T: AsRef<IriStr>>(
     let authority = iri
         .as_ref()
         .authority_components()
-        .ok_or(CheckError(Some(iri.as_ref().to_owned())))?;
+        .ok_or_else(|| CheckError(Some(iri.as_ref().to_owned())))?;
 
     if authority.host() != host || authority.port() != port {
         return Err(CheckError(Some(iri.as_ref().to_owned())));