diff --git a/didier/views/modals/links.py b/didier/views/modals/links.py
index 3d4b1be..5d70a93 100644
--- a/didier/views/modals/links.py
+++ b/didier/views/modals/links.py
@@ -12,8 +12,8 @@ __all__ = ["AddLink"]
 class AddLink(discord.ui.Modal, title="Add Link"):
     """Modal to add a new link"""
 
-    name = discord.ui.TextInput(label="Name", style=discord.TextStyle.short, placeholder="Source")
-    url = discord.ui.TextInput(
+    name: discord.ui.TextInput = discord.ui.TextInput(label="Name", style=discord.TextStyle.short, placeholder="Source")
+    url: discord.ui.TextInput = discord.ui.TextInput(
         label="URL", style=discord.TextStyle.short, placeholder="https://github.com/stijndcl/didier"
     )
 
@@ -25,6 +25,12 @@ class AddLink(discord.ui.Modal, title="Add Link"):
 
     @overrides
     async def on_submit(self, interaction: discord.Interaction):
+        if self.name.value is None:
+            return await interaction.response.send_message("Required field `Name` cannot be empty.", ephemeral=True)
+
+        if self.url.value is None:
+            return await interaction.response.send_message("Required field `URL` cannot be empty.", ephemeral=True)
+
         async with self.client.postgres_session as session:
             await add_link(session, self.name.value, self.url.value)
             await self.client.database_caches.links.invalidate(session)