diff --git a/lnbits/extensions/nostrnip5/crud.py b/lnbits/extensions/nostrnip5/crud.py
index b7c019f7..b445e991 100644
--- a/lnbits/extensions/nostrnip5/crud.py
+++ b/lnbits/extensions/nostrnip5/crud.py
@@ -50,7 +50,7 @@ async def get_address_by_local_part(
         "SELECT * FROM nostrnip5.addresses WHERE domain_id = ? AND local_part = ?",
         (
             domain_id,
-            local_part,
+            local_part.lower(),
         ),
     )
     return Address.from_row(row) if row else None
@@ -159,7 +159,7 @@ async def create_address_internal(domain_id: str, data: CreateAddressData) -> Ad
         (
             address_id,
             domain_id,
-            data.local_part,
+            data.local_part.lower(),
             data.pubkey,
             False,
         ),
diff --git a/lnbits/extensions/nostrnip5/views_api.py b/lnbits/extensions/nostrnip5/views_api.py
index ba30863a..3d005696 100644
--- a/lnbits/extensions/nostrnip5/views_api.py
+++ b/lnbits/extensions/nostrnip5/views_api.py
@@ -225,13 +225,15 @@ async def api_get_nostr_json(
     output = {}
 
     for address in addresses:
+        local_part = address.get("local_part").lower()
+
         if address.get("active") == False:
             continue
 
-        if name and name != address.get("local_part"):
+        if name and name.lower() != local_part:
             continue
 
-        output[address.get("local_part")] = address.get("pubkey")
+        output[local_part] = address.get("pubkey")
 
     response.headers["Access-Control-Allow-Origin"] = "*"
     response.headers["Access-Control-Allow-Methods"] = "GET,OPTIONS"