diff --git a/infos/src/main.rs b/infos/src/main.rs
index c627edad8..92eeebf83 100644
--- a/infos/src/main.rs
+++ b/infos/src/main.rs
@@ -21,7 +21,6 @@ const DOCID_WORD_POSITIONS_DB_NAME: &str = "docid-word-positions";
 const WORD_PAIR_PROXIMITY_DOCIDS_DB_NAME: &str = "word-pair-proximity-docids";
 const WORD_PREFIX_PAIR_PROXIMITY_DOCIDS_DB_NAME: &str = "word-prefix-pair-proximity-docids";
 const DOCUMENTS_DB_NAME: &str = "documents";
-const USERS_IDS_DOCUMENTS_IDS: &[u8] = b"users-ids-documents-ids";
 
 const ALL_DATABASE_NAMES: &[&str] = &[
     MAIN_DB_NAME,
@@ -173,10 +172,6 @@ enum Command {
     ///
     /// All of the fields are extracted, not just the displayed ones.
     ExportDocuments,
-
-    /// A command that patches the old external ids
-    /// into the new external ids format.
-    PatchToNewExternalIds,
 }
 
 fn main() -> anyhow::Result<()> {
@@ -224,32 +219,9 @@ fn main() -> anyhow::Result<()> {
         ExportWordsFst => export_words_fst(&index, &rtxn),
         ExportWordsPrefixFst => export_words_prefix_fst(&index, &rtxn),
         ExportDocuments => export_documents(&index, &rtxn),
-        PatchToNewExternalIds => {
-            drop(rtxn);
-            let mut wtxn = index.write_txn()?;
-            let result = patch_to_new_external_ids(&index, &mut wtxn);
-            wtxn.commit()?;
-            result
-        },
     }
 }
 
-fn patch_to_new_external_ids(index: &Index, wtxn: &mut heed::RwTxn) -> anyhow::Result<()> {
-    use heed::types::ByteSlice;
-
-    if let Some(documents_ids) = index.main.get::<_, ByteSlice, ByteSlice>(wtxn, USERS_IDS_DOCUMENTS_IDS)? {
-        let documents_ids = documents_ids.to_owned();
-        index.main.put::<_, ByteSlice, ByteSlice>(
-            wtxn,
-            milli::index::HARD_EXTERNAL_DOCUMENTS_IDS_KEY.as_bytes(),
-            &documents_ids,
-        )?;
-        index.main.delete::<_, ByteSlice>(wtxn, USERS_IDS_DOCUMENTS_IDS)?;
-    }
-
-    Ok(())
-}
-
 fn most_common_words(index: &Index, rtxn: &heed::RoTxn, limit: usize) -> anyhow::Result<()> {
     use std::collections::BinaryHeap;
     use std::cmp::Reverse;