diff --git a/data/compile.py b/data/compile.py
index 540eb6ac8..f01233798 100644
--- a/data/compile.py
+++ b/data/compile.py
@@ -4,6 +4,7 @@
 import processors.areatree.process as areatree
 import processors.maps.process as maps
 from processors import (
+    aliases,
     coords,
     export,
     images,
@@ -115,6 +116,9 @@ def main() -> None:
     logging.info("-- 97 Search: Get combined ranking")
     search.add_ranking_combined(data)
 
+    logging.info("-- 98 Aliases: extract aliases")
+    aliases.add_aliases(data)
+
     logging.info("-- 100 Export and generate Sitemap")
     # the root entry is somewhat arbitrary
     # leaving it here and thus having it delivered by the other apis leads to bad ergonomics
diff --git a/data/processors/aliases.py b/data/processors/aliases.py
new file mode 100644
index 000000000..50ee8dc6c
--- /dev/null
+++ b/data/processors/aliases.py
@@ -0,0 +1,18 @@
+from typing import Any
+
+
+
+def extract_arch_name(entry: dict) -> str | None:
+    """Extract the arch name from the entry"""
+    if entry["type"] == "building":
+        return f"@{entry['id']}"
+    return entry.get("tumonline_data", {}).get("arch_name", None)
+
+def add_aliases(data: dict[str, dict[str, Any]]) -> None:
+    """Add coordinates to all entries and check for issues"""
+    
+    for _id, entry in data.items():
+        entry["aliases"] = []
+        if arch_name := extract_arch_name(entry):
+            entry["arch_name"] = arch_name,
+            entry["aliases"].append(arch_name)
\ No newline at end of file
diff --git a/data/processors/export.py b/data/processors/export.py
index 29df33a62..b3df4cd4c 100644
--- a/data/processors/export.py
+++ b/data/processors/export.py
@@ -76,7 +76,7 @@ def export_for_search(data: dict) -> None:
                 "ms_id": _id.replace(".", "-"),
                 "id": _id,  # not searchable
                 "name": entry["name"],
-                "arch_name": extract_arch_name(entry),
+                "arch_name": entry.get("arch_name"),
                 "type": entry["type"],
                 "type_common_name": entry["type_common_name"],
                 "facet": {
@@ -118,13 +118,6 @@ def extract_parent_building_names(data: dict, parents: list[str], building_paren
     return short_names + long_names
 
 
-def extract_arch_name(entry: dict) -> str | None:
-    """Extract the arch name from the entry"""
-    if entry["type"] == "building":
-        return f"@{entry['id']}"
-    return entry.get("tumonline_data", {}).get("arch_name", None)
-
-
 def _make_sure_is_safe(obj: object):
     """
     Check if any of the specified names in removed_names are present
@@ -174,11 +167,6 @@ def export_for_api(data: dict) -> None:
     export_data = []
     for _id, entry in data.items():
         entry.setdefault("maps", {})["default"] = "interactive"
-
-        entry["aliases"] = []
-        if arch_name := extract_arch_name(entry):
-            entry["aliases"].append(arch_name)
-
         export_data.append(extract_exported_item(data, entry))
 
     _make_sure_is_safe(export_data)