diff --git a/tests/crates/Cargo.toml b/tests/crates/Cargo.toml
index c8775e2a0e..e7ebee3ebd 100644
--- a/tests/crates/Cargo.toml
+++ b/tests/crates/Cargo.toml
@@ -1,6 +1,7 @@
 [package]
 name = "syn-parse-crates"
 version = "0.0.0"
+authors = ["David Tolnay <dtolnay@gmail.com>"]
 edition = "2018"
 publish = false
 
diff --git a/tests/features/Cargo.toml b/tests/features/Cargo.toml
index 8f6b3de07a..7f7c8032bf 100644
--- a/tests/features/Cargo.toml
+++ b/tests/features/Cargo.toml
@@ -1,6 +1,7 @@
 [package]
 name = "syn-test-suite"
 version = "0.0.0"
+authors = ["David Tolnay <dtolnay@gmail.com>"]
 edition = "2018"
 publish = false
 
diff --git a/tests/features/macro/Cargo.toml b/tests/features/macro/Cargo.toml
index 4480a90530..07e1c9ecfd 100644
--- a/tests/features/macro/Cargo.toml
+++ b/tests/features/macro/Cargo.toml
@@ -1,6 +1,7 @@
 [package]
 name = "syn-test-suite-feature-check"
 version = "0.0.0"
+authors = ["David Tolnay <dtolnay@gmail.com>"]
 edition = "2018"
 publish = false