diff --git a/derive/Cargo.toml b/derive/Cargo.toml
index d6231c4..6993c43 100644
--- a/derive/Cargo.toml
+++ b/derive/Cargo.toml
@@ -19,4 +19,4 @@ description = "Implementation of #[derive(Encode, Decode)] for bincode"
 proc-macro = true
 
 [dependencies]
-virtue = "0.0.8"
+virtue = "0.0.9"
diff --git a/tests/issues.rs b/tests/issues.rs
index a3565a3..0b32be8 100644
--- a/tests/issues.rs
+++ b/tests/issues.rs
@@ -24,6 +24,9 @@ mod issue_500;
 #[path = "issues/issue_523.rs"]
 mod issue_523;
 
+#[path = "issues/issue_537.rs"]
+mod issue_537;
+
 #[path = "issues/issue_547.rs"]
 mod issue_547;
 
diff --git a/tests/issues/issue_537.rs b/tests/issues/issue_537.rs
new file mode 100644
index 0000000..4dd8bbf
--- /dev/null
+++ b/tests/issues/issue_537.rs
@@ -0,0 +1,8 @@
+#![cfg(all(feature = "derive", feature = "std"))]
+
+use bincode::{Decode, Encode};
+
+#[derive(Encode, Decode)]
+struct Foo<Bar = ()> {
+    x: Bar,
+}