diff --git a/candle-core/src/display.rs b/candle-core/src/display.rs
index 8390a4a0..b497699b 100644
--- a/candle-core/src/display.rs
+++ b/candle-core/src/display.rs
@@ -43,7 +43,7 @@ impl Tensor {
                 }
             }
         }
-        write!(f, "; {} ,{}]", self.dtype().as_str(), device_str)
+        write!(f, "; {}{}]", self.dtype().as_str(), device_str)
     }
 }