diff --git a/tests/expectations/tests/no-partialeq-opaque.rs b/tests/expectations/tests/no-partialeq-opaque.rs
index f17ea32970..8fd5451fb3 100644
--- a/tests/expectations/tests/no-partialeq-opaque.rs
+++ b/tests/expectations/tests/no-partialeq-opaque.rs
@@ -5,7 +5,7 @@
 
 
 #[repr(C)]
-#[derive(Debug, Copy)]
+#[derive(Debug, Default, Copy)]
 pub struct NoPartialEq {
     pub _bindgen_opaque_blob: u32,
 }
diff --git a/tests/expectations/tests/no-partialeq-whitelisted.rs b/tests/expectations/tests/no-partialeq-whitelisted.rs
index 35e7ddb9a3..f07864cea8 100644
--- a/tests/expectations/tests/no-partialeq-whitelisted.rs
+++ b/tests/expectations/tests/no-partialeq-whitelisted.rs
@@ -5,7 +5,7 @@
 
 
 #[repr(C)]
-#[derive(Debug, Copy)]
+#[derive(Debug, Default, Copy)]
 pub struct NoPartialEq {
     pub i: ::std::os::raw::c_int,
 }
diff --git a/tests/expectations/tests/whitelisted-item-references-no-partialeq.rs b/tests/expectations/tests/whitelisted-item-references-no-partialeq.rs
index f1a4ebacaf..a7bbab74a1 100644
--- a/tests/expectations/tests/whitelisted-item-references-no-partialeq.rs
+++ b/tests/expectations/tests/whitelisted-item-references-no-partialeq.rs
@@ -5,7 +5,7 @@
 
 
 #[repr(C)]
-#[derive(Debug, Copy)]
+#[derive(Debug, Default, Copy)]
 pub struct NoPartialEq {
     pub _address: u8,
 }
@@ -28,7 +28,7 @@ impl Clone for NoPartialEq {
     }
 }
 #[repr(C)]
-#[derive(Debug, Copy)]
+#[derive(Debug, Default, Copy)]
 pub struct WhitelistMe {
     pub a: NoPartialEq,
 }