diff --git a/rust/datafusion/src/datasource/parquet.rs b/rust/datafusion/src/datasource/parquet.rs
index d5da6ad68c4..85db60c899a 100644
--- a/rust/datafusion/src/datasource/parquet.rs
+++ b/rust/datafusion/src/datasource/parquet.rs
@@ -241,7 +241,7 @@ where
                 builder.append_slice(&converted_buffer[0..values_read])?;
             } else {
                 let mut value_index = 0;
-                for i in 0..def_levels.len() {
+                for i in 0..levels_read {
                     if def_levels[i] != 0 {
                         builder.append_value(converted_buffer[value_index].into())?;
                         value_index += 1;