diff --git a/src/blob.rs b/src/blob.rs
index 5e74adffc..64fde4520 100644
--- a/src/blob.rs
+++ b/src/blob.rs
@@ -155,7 +155,7 @@ impl<'a> BlobObject<'a> {
             return Err(format_err!("bad blob name: {}", rel_path.display()));
         }
         let name = rel_path.to_str().context("wrong name")?;
-        BlobObject::from_name(context, name.to_string())
+        BlobObject::from_name(context, name)
     }
 
     /// Returns a [BlobObject] for an existing blob.
@@ -164,13 +164,13 @@ impl<'a> BlobObject<'a> {
     /// prefixed, as returned by [BlobObject::as_name].  This is how
     /// you want to create a [BlobObject] for a filename read from the
     /// database.
-    pub fn from_name(context: &'a Context, name: String) -> Result<BlobObject<'a>> {
-        let name: String = match name.starts_with("$BLOBDIR/") {
-            true => name.splitn(2, '/').last().unwrap().to_string(),
+    pub fn from_name(context: &'a Context, name: &str) -> Result<BlobObject<'a>> {
+        let name = match name.starts_with("$BLOBDIR/") {
+            true => name.splitn(2, '/').last().unwrap(),
             false => name,
         };
-        if !BlobObject::is_acceptible_blob_name(&name) {
-            return Err(format_err!("not an acceptable blob name: {}", &name));
+        if !BlobObject::is_acceptible_blob_name(name) {
+            return Err(format_err!("not an acceptable blob name: {}", name));
         }
         Ok(BlobObject {
             blobdir: context.get_blobdir(),
diff --git a/src/mimefactory.rs b/src/mimefactory.rs
index def21ce03..f728ce77c 100644
--- a/src/mimefactory.rs
+++ b/src/mimefactory.rs
@@ -1699,7 +1699,7 @@ async fn build_body_file(context: &Context, msg: &Message) -> Result<MimePart<'s
 
 async fn build_avatar_file(context: &Context, path: &str) -> Result<String> {
     let blob = match path.starts_with("$BLOBDIR/") {
-        true => BlobObject::from_name(context, path.to_string())?,
+        true => BlobObject::from_name(context, path)?,
         false => BlobObject::from_path(context, path.as_ref())?,
     };
     let body = fs::read(blob.to_abs_path()).await?;
diff --git a/src/net/http.rs b/src/net/http.rs
index 3184ecb1f..e863e8f99 100644
--- a/src/net/http.rs
+++ b/src/net/http.rs
@@ -167,7 +167,7 @@ async fn http_cache_get(context: &Context, url: &str) -> Result<Option<(Response
     };
     let is_stale = now > stale_timestamp;
 
-    let blob_object = BlobObject::from_name(context, blob_name)?;
+    let blob_object = BlobObject::from_name(context, &blob_name)?;
     let blob_abs_path = blob_object.to_abs_path();
     let blob = match fs::read(blob_abs_path)
         .await
diff --git a/src/param.rs b/src/param.rs
index 2e61d6a69..e5c712569 100644
--- a/src/param.rs
+++ b/src/param.rs
@@ -367,7 +367,7 @@ impl Params {
             return Ok(None);
         };
         ensure!(val.starts_with("$BLOBDIR/"));
-        let blob = BlobObject::from_name(context, val.to_string())?;
+        let blob = BlobObject::from_name(context, val)?;
         Ok(Some(blob))
     }