diff --git a/crates/polars-core/src/chunked_array/ops/zip.rs b/crates/polars-core/src/chunked_array/ops/zip.rs
index 630cef7f4808..2e6ca0f7afb8 100644
--- a/crates/polars-core/src/chunked_array/ops/zip.rs
+++ b/crates/polars-core/src/chunked_array/ops/zip.rs
@@ -375,10 +375,10 @@ impl ChunkZip<StructType> for StructChunked {
                         .all(|(r, m)| r == m));
 
                     let combine = if l.null_count() == 0 {
-                        |r: Option<&Bitmap>, m: &Bitmap| r.map(|r| arrow::bitmap::or_not(r, m))
+                        |r: Option<&Bitmap>, m: &Bitmap| r.map(|r| arrow::bitmap::or(r, m))
                     } else {
                         |r: Option<&Bitmap>, m: &Bitmap| {
-                            Some(r.map_or_else(|| m.clone(), |r| arrow::bitmap::and(r, m)))
+                            Some(r.map_or_else(|| m.clone(), |r| arrow::bitmap::and_not(r, m)))
                         }
                     };
 
@@ -411,10 +411,10 @@ impl ChunkZip<StructType> for StructChunked {
                         .all(|(l, m)| l == m));
 
                     let combine = if r.null_count() == 0 {
-                        |r: Option<&Bitmap>, m: &Bitmap| r.map(|r| arrow::bitmap::or(r, m))
+                        |l: Option<&Bitmap>, m: &Bitmap| l.map(|l| arrow::bitmap::or_not(l, m))
                     } else {
-                        |r: Option<&Bitmap>, m: &Bitmap| {
-                            Some(r.map_or_else(|| m.clone(), |r| arrow::bitmap::and_not(r, m)))
+                        |l: Option<&Bitmap>, m: &Bitmap| {
+                            Some(l.map_or_else(|| m.clone(), |l| arrow::bitmap::and(l, m)))
                         }
                     };