--- a/crates/jrsonnet-evaluator/src/error.rs
+++ b/crates/jrsonnet-evaluator/src/error.rs
@@ -36,7 +36,7 @@
 
 	#[error("variable is not defined: {0}")]
 	VariableIsNotDefined(Rc<str>),
-	#[error("type mismatch: expected {2}, got {1:?} {0}")]
+	#[error("type mismatch: expected {}, got {2} {0}", .1.iter().map(|e| format!("{}", e)).collect::<Vec<_>>().join(", "))]
 	TypeMismatch(&'static str, Vec<ValType>, ValType),
 	#[error("no such field: {0}")]
 	NoSuchField(Rc<str>),