diff --git a/crates/milli/src/error.rs b/crates/milli/src/error.rs
index 2a42c37c0..5e00f3f36 100644
--- a/crates/milli/src/error.rs
+++ b/crates/milli/src/error.rs
@@ -10,15 +10,23 @@ use rhai::EvalAltResult;
 use serde_json::Value;
 use thiserror::Error;
 
-use crate::constants::RESERVED_GEO_FIELD_NAME;
+use crate::constants::{RESERVED_GEOJSON_FIELD_NAME, RESERVED_GEO_FIELD_NAME};
 use crate::documents::{self, DocumentsBatchCursorError};
 use crate::thread_pool_no_abort::PanicCatched;
 use crate::vector::settings::EmbeddingSettings;
 use crate::{CriterionError, DocumentId, FieldId, Object, SortError};
 
 pub fn is_reserved_keyword(keyword: &str) -> bool {
-    [RESERVED_GEO_FIELD_NAME, "_geoDistance", "_geoPoint", "_geoRadius", "_geoBoundingBox"]
-        .contains(&keyword)
+    [
+        RESERVED_GEO_FIELD_NAME,
+        RESERVED_GEOJSON_FIELD_NAME,
+        "_geoDistance",
+        "_geoPoint",
+        "_geoRadius",
+        "_geoBoundingBox",
+        "_geoPolygon",
+    ]
+    .contains(&keyword)
 }
 
 #[allow(clippy::large_enum_variant)]
diff --git a/crates/milli/src/update/new/document.rs b/crates/milli/src/update/new/document.rs
index 5de1c0003..842b313eb 100644
--- a/crates/milli/src/update/new/document.rs
+++ b/crates/milli/src/update/new/document.rs
@@ -552,7 +552,10 @@ impl<'a, Mapper: FieldIdMapper> Document<'a> for KvDelAddDocument<'a, Mapper> {
                 Err(error) => return Some(Err(error.into())),
             };
 
-            if name == RESERVED_VECTORS_FIELD_NAME || name == RESERVED_GEO_FIELD_NAME {
+            if name == RESERVED_VECTORS_FIELD_NAME
+                || name == RESERVED_GEO_FIELD_NAME
+                || name == RESERVED_GEOJSON_FIELD_NAME
+            {
                 continue;
             }
 
@@ -585,7 +588,10 @@ impl<'a, Mapper: FieldIdMapper> Document<'a> for KvDelAddDocument<'a, Mapper> {
                 Err(_) => return Some(()),
             };
 
-            if name == RESERVED_VECTORS_FIELD_NAME || name == RESERVED_GEO_FIELD_NAME {
+            if name == RESERVED_VECTORS_FIELD_NAME
+                || name == RESERVED_GEO_FIELD_NAME
+                || name == RESERVED_GEOJSON_FIELD_NAME
+            {
                 continue;
             }
 
@@ -595,7 +601,10 @@ impl<'a, Mapper: FieldIdMapper> Document<'a> for KvDelAddDocument<'a, Mapper> {
     }
 
     fn top_level_field(&self, k: &str) -> Result<Option<&'a RawValue>> {
-        if k == RESERVED_VECTORS_FIELD_NAME || k == RESERVED_GEO_FIELD_NAME {
+        if k == RESERVED_VECTORS_FIELD_NAME
+            || k == RESERVED_GEO_FIELD_NAME
+            || k == RESERVED_GEOJSON_FIELD_NAME
+        {
             return Ok(None);
         }
         self.get(k)
diff --git a/crates/milli/src/update/new/extract/documents.rs b/crates/milli/src/update/new/extract/documents.rs
index 5f287851a..ab7dde32e 100644
--- a/crates/milli/src/update/new/extract/documents.rs
+++ b/crates/milli/src/update/new/extract/documents.rs
@@ -5,7 +5,7 @@ use bumpalo::Bump;
 use hashbrown::HashMap;
 
 use super::DelAddRoaringBitmap;
-use crate::constants::RESERVED_GEO_FIELD_NAME;
+use crate::constants::{RESERVED_GEOJSON_FIELD_NAME, RESERVED_GEO_FIELD_NAME};
 use crate::update::new::channel::{DocumentsSender, ExtractorBbqueueSender};
 use crate::update::new::document::{write_to_obkv, Document, DocumentContext, DocumentIdentifiers};
 use crate::update::new::indexer::document_changes::{Extractor, IndexingContext};
@@ -75,7 +75,11 @@ impl<'extractor> Extractor<'extractor> for DocumentsExtractor<'_, '_> {
                         .geo_field()
                         .transpose()
                         .map(|res| res.map(|rv| (RESERVED_GEO_FIELD_NAME, rv)));
-                    for res in content.iter_top_level_fields().chain(geo_iter) {
+                    let geojson_iter = content
+                        .geojson_field()
+                        .transpose()
+                        .map(|res| res.map(|rv| (RESERVED_GEOJSON_FIELD_NAME, rv)));
+                    for res in content.iter_top_level_fields().chain(geo_iter).chain(geojson_iter) {
                         let (f, _) = res?;
                         let entry = document_extractor_data
                             .field_distribution_delta
@@ -94,7 +98,11 @@ impl<'extractor> Extractor<'extractor> for DocumentsExtractor<'_, '_> {
                         .geo_field()
                         .transpose()
                         .map(|res| res.map(|rv| (RESERVED_GEO_FIELD_NAME, rv)));
-                    for res in content.iter_top_level_fields().chain(geo_iter) {
+                    let geojson_iter = content
+                        .geojson_field()
+                        .transpose()
+                        .map(|res| res.map(|rv| (RESERVED_GEOJSON_FIELD_NAME, rv)));
+                    for res in content.iter_top_level_fields().chain(geo_iter).chain(geojson_iter) {
                         let (f, _) = res?;
                         let entry = document_extractor_data
                             .field_distribution_delta
@@ -108,7 +116,11 @@ impl<'extractor> Extractor<'extractor> for DocumentsExtractor<'_, '_> {
                         .geo_field()
                         .transpose()
                         .map(|res| res.map(|rv| (RESERVED_GEO_FIELD_NAME, rv)));
-                    for res in content.iter_top_level_fields().chain(geo_iter) {
+                    let geojson_iter = content
+                        .geojson_field()
+                        .transpose()
+                        .map(|res| res.map(|rv| (RESERVED_GEOJSON_FIELD_NAME, rv)));
+                    for res in content.iter_top_level_fields().chain(geo_iter).chain(geojson_iter) {
                         let (f, _) = res?;
                         let entry = document_extractor_data
                             .field_distribution_delta
@@ -143,7 +155,11 @@ impl<'extractor> Extractor<'extractor> for DocumentsExtractor<'_, '_> {
                         .geo_field()
                         .transpose()
                         .map(|res| res.map(|rv| (RESERVED_GEO_FIELD_NAME, rv)));
-                    for res in content.iter_top_level_fields().chain(geo_iter) {
+                    let geojson_iter = content
+                        .geojson_field()
+                        .transpose()
+                        .map(|res| res.map(|rv| (RESERVED_GEOJSON_FIELD_NAME, rv)));
+                    for res in content.iter_top_level_fields().chain(geo_iter).chain(geojson_iter) {
                         let (f, _) = res?;
                         let entry = document_extractor_data
                             .field_distribution_delta
diff --git a/crates/milli/src/update/new/reindex.rs b/crates/milli/src/update/new/reindex.rs
index 6bfeb123e..8957baa50 100644
--- a/crates/milli/src/update/new/reindex.rs
+++ b/crates/milli/src/update/new/reindex.rs
@@ -1,6 +1,7 @@
 use heed::RwTxn;
 
 use super::document::{Document, DocumentFromDb};
+use crate::constants::{RESERVED_GEOJSON_FIELD_NAME, RESERVED_GEO_FIELD_NAME};
 use crate::progress::{self, AtomicSubStep, Progress};
 use crate::{FieldDistribution, Index, Result};
 
@@ -22,8 +23,13 @@ pub fn field_distribution(index: &Index, wtxn: &mut RwTxn<'_>, progress: &Progre
         let Some(document) = DocumentFromDb::new(docid, wtxn, index, &field_id_map)? else {
             continue;
         };
-        let geo_iter = document.geo_field().transpose().map(|res| res.map(|rv| ("_geo", rv)));
-        for res in document.iter_top_level_fields().chain(geo_iter) {
+        let geo_iter =
+            document.geo_field().transpose().map(|res| res.map(|rv| (RESERVED_GEO_FIELD_NAME, rv)));
+        let geojson_iter = document
+            .geojson_field()
+            .transpose()
+            .map(|res| res.map(|rv| (RESERVED_GEOJSON_FIELD_NAME, rv)));
+        for res in document.iter_top_level_fields().chain(geo_iter).chain(geojson_iter) {
             let (field_name, _) = res?;
             if let Some(count) = distribution.get_mut(field_name) {
                 *count += 1;