diff --git a/datafusion/expr/src/expr.rs b/datafusion/expr/src/expr.rs
index 71d3057575759..47c2ce4ee0795 100644
--- a/datafusion/expr/src/expr.rs
+++ b/datafusion/expr/src/expr.rs
@@ -662,7 +662,7 @@ pub fn intersect_metadata_for_union<'a>(
             }
             Some(current) => {
                 // Only keep keys that exist in both with the same value
-                current.retain(|k, v| metadata.get(k) == Some(v));
+                current.retain(|k, v| metadata.get(k) == Some(&*v));
             }
         }
     }