diff --git a/src/tests/mod.rs b/src/tests/mod.rs
index be37c58..4afdc17 100644
--- a/src/tests/mod.rs
+++ b/src/tests/mod.rs
@@ -365,6 +365,7 @@ fn outputs_move_commands() {
 }
 
 #[test]
+#[cfg(feature = "json")]
 /// Ensure JSON output is valid.
 fn test_json() {
 	use crate::formats::Json;