1 files changed, 1 insertions, 1 deletions
diff --git a/matrix-lang/src/value/matrix.rs b/matrix-lang/src/value/matrix.rs
index 91e3ec2..1d55210 100644
--- a/matrix-lang/src/value/matrix.rs
+++ b/matrix-lang/src/value/matrix.rs
@@ -184,7 +184,7 @@ impl Matrix {
         let values = rows
             .into_iter()
             .reduce(|mut a,b| {a.extend(b); a})
-            .unwrap();
+            .ok_or(error!("matrix row smashed"))?;
 
         Ok(Matrix::new(self.domain + other.domain, self.codomain, values))
     }