diff --git a/core/Piranha/Services/Internal/AliasService.cs b/core/Piranha/Services/Internal/AliasService.cs
index e92bed4e7..1c9e5e2ec 100644
--- a/core/Piranha/Services/Internal/AliasService.cs
+++ b/core/Piranha/Services/Internal/AliasService.cs
@@ -260,7 +260,7 @@ private async Task<IEnumerable<AliasUrlCacheEntry>> GetAliasUrls(Guid siteId)
                 {
                     Id = x.Id,
                     AliasUrl = x.AliasUrl
-                });
+                }).ToList();
 
                 _cache.Set($"Piranha_AliasUrls_{siteId}", aliasUrls);
             }
diff --git a/test/Piranha.Tests/Services/AliasTests.cs b/test/Piranha.Tests/Services/AliasTests.cs
index d9f03f0f9..e614144d4 100644
--- a/test/Piranha.Tests/Services/AliasTests.cs
+++ b/test/Piranha.Tests/Services/AliasTests.cs
@@ -318,6 +318,8 @@ public async Task Delete()
 
             Assert.NotNull(model);
 
+            model = await api.Aliases.GetByAliasUrlAsync(ALIAS_4);
+
             await api.Aliases.DeleteAsync(model);
         }
     }