diff --git a/crates/uv-auth/src/keyring.rs b/crates/uv-auth/src/keyring.rs
index 10d855370..779ab2823 100644
--- a/crates/uv-auth/src/keyring.rs
+++ b/crates/uv-auth/src/keyring.rs
@@ -14,7 +14,7 @@ use crate::credentials::Credentials;
 /// Keyring credentials that have been stored during an invocation of uv.
 static STORED_KEYRING_URLS: LazyLock<StoredKeyringUrls> = LazyLock::new(StoredKeyringUrls::new);
 /// Service name prefix for storing credentials in a keyring.
-static UV_SERVICE_PREFIX: &str = "uv-credentials-";
+static UV_SERVICE_PREFIX: &str = "uv-credentials:";
 
 /// A backend for retrieving credentials from a keyring.
 ///