diff --git a/arrow/src/datatypes/datatype.rs b/arrow/src/datatypes/datatype.rs
index 29f7d726930..97ddc0c4a61 100644
--- a/arrow/src/datatypes/datatype.rs
+++ b/arrow/src/datatypes/datatype.rs
@@ -1487,8 +1487,8 @@ mod test {
             let min_bytes = MIN_DECIMAL_BYTES_FOR_LARGER_EACH_PRECISION[i - 1];
             max_value += "9";
             min_value += "9";
-            assert_eq!(max_decimal.raw_value(), max_bytes);
-            assert_eq!(min_decimal.raw_value(), min_bytes);
+            assert_eq!(max_decimal.raw_value(), &max_bytes);
+            assert_eq!(min_decimal.raw_value(), &min_bytes);
         }
     }
 }