diff --git a/rust/datafusion/src/physical_plan/expressions.rs b/rust/datafusion/src/physical_plan/expressions.rs
index 4c45900cf5d..d82c63b3083 100644
--- a/rust/datafusion/src/physical_plan/expressions.rs
+++ b/rust/datafusion/src/physical_plan/expressions.rs
@@ -3242,7 +3242,7 @@ mod tests {
 
         let lit_array = Arc::new(Int32Array::from(vec![2; a.len()]));
 
-        let result = nullif_func(&[a.clone(), lit_array])?;
+        let result = nullif_func(&[a, lit_array])?;
 
         assert_eq!(result.len(), a_len);
 
@@ -3270,7 +3270,7 @@ mod tests {
 
         let lit_array = Arc::new(Int32Array::from(vec![1; a.len()]));
 
-        let result = nullif_func(&[a.clone(), lit_array])?;
+        let result = nullif_func(&[a, lit_array])?;
         assert_eq!(result.len(), a_len);
 
         let expected = Int32Array::from(vec![