diff --git a/Kyoo/Models/DatabaseMigrations/Internal/20200623000428_Initial.Designer.cs b/Kyoo/Models/DatabaseMigrations/Internal/20200623233713_Initial.Designer.cs
similarity index 99%
rename from Kyoo/Models/DatabaseMigrations/Internal/20200623000428_Initial.Designer.cs
rename to Kyoo/Models/DatabaseMigrations/Internal/20200623233713_Initial.Designer.cs
index 1467c44e..a8f29bf5 100644
--- a/Kyoo/Models/DatabaseMigrations/Internal/20200623000428_Initial.Designer.cs
+++ b/Kyoo/Models/DatabaseMigrations/Internal/20200623233713_Initial.Designer.cs
@@ -10,7 +10,7 @@ using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
 namespace Kyoo.Models.DatabaseMigrations.Internal
 {
     [DbContext(typeof(DatabaseContext))]
-    [Migration("20200623000428_Initial")]
+    [Migration("20200623233713_Initial")]
     partial class Initial
     {
         protected override void BuildTargetModel(ModelBuilder modelBuilder)
@@ -432,6 +432,9 @@ namespace Kyoo.Models.DatabaseMigrations.Internal
 
                     b.HasKey("ID");
 
+                    b.HasIndex("Slug")
+                        .IsUnique();
+
                     b.HasIndex("StudioID");
 
                     b.ToTable("Shows");
diff --git a/Kyoo/Models/DatabaseMigrations/Internal/20200623000428_Initial.cs b/Kyoo/Models/DatabaseMigrations/Internal/20200623233713_Initial.cs
similarity index 99%
rename from Kyoo/Models/DatabaseMigrations/Internal/20200623000428_Initial.cs
rename to Kyoo/Models/DatabaseMigrations/Internal/20200623233713_Initial.cs
index 9151e80b..4bdd56d9 100644
--- a/Kyoo/Models/DatabaseMigrations/Internal/20200623000428_Initial.cs
+++ b/Kyoo/Models/DatabaseMigrations/Internal/20200623233713_Initial.cs
@@ -523,6 +523,12 @@ namespace Kyoo.Models.DatabaseMigrations.Internal
                 columns: new[] { "ShowID", "SeasonNumber" },
                 unique: true);
 
+            migrationBuilder.CreateIndex(
+                name: "IX_Shows_Slug",
+                table: "Shows",
+                column: "Slug",
+                unique: true);
+
             migrationBuilder.CreateIndex(
                 name: "IX_Shows_StudioID",
                 table: "Shows",
diff --git a/Kyoo/Models/DatabaseMigrations/Internal/DatabaseContextModelSnapshot.cs b/Kyoo/Models/DatabaseMigrations/Internal/DatabaseContextModelSnapshot.cs
index d71bb43d..2479152f 100644
--- a/Kyoo/Models/DatabaseMigrations/Internal/DatabaseContextModelSnapshot.cs
+++ b/Kyoo/Models/DatabaseMigrations/Internal/DatabaseContextModelSnapshot.cs
@@ -430,6 +430,9 @@ namespace Kyoo.Models.DatabaseMigrations.Internal
 
                     b.HasKey("ID");
 
+                    b.HasIndex("Slug")
+                        .IsUnique();
+
                     b.HasIndex("StudioID");
 
                     b.ToTable("Shows");
diff --git a/Kyoo/Tasks/Crawler.cs b/Kyoo/Tasks/Crawler.cs
index 91747974..4b2a8f46 100644
--- a/Kyoo/Tasks/Crawler.cs
+++ b/Kyoo/Tasks/Crawler.cs
@@ -150,6 +150,12 @@ namespace Kyoo.Controllers
 				Regex regex = new Regex(patern, RegexOptions.IgnoreCase);
 				Match match = regex.Match(relativePath);
 
+				if (!match.Success)
+				{
+					await Console.Error.WriteLineAsync($"The episode at {path} does not match the episode's regex.");
+					return;
+				}
+				
 				string showPath = Path.GetDirectoryName(path);
 				string collectionName = match.Groups["Collection"]?.Value;
 				string showName = match.Groups["Show"].Value;