diff --git a/categories/software-development/rules-to-better-entity-framework.md b/categories/software-development/rules-to-better-entity-framework.md
index 4194593e9b6..b50653a6e58 100644
--- a/categories/software-development/rules-to-better-entity-framework.md
+++ b/categories/software-development/rules-to-better-entity-framework.md
@@ -20,5 +20,5 @@ index:
 - bulk-process-in-chunks 
 - when-to-use-raw-sql
 - use-code-migrations
-
+- efcore-in-memory-provider
 ---
diff --git a/categories/software-development/rules-to-better-testing.md b/categories/software-development/rules-to-better-testing.md
index f9d108dd7e9..e889d9ed96e 100644
--- a/categories/software-development/rules-to-better-testing.md
+++ b/categories/software-development/rules-to-better-testing.md
@@ -24,6 +24,7 @@ index:
 - how-to-decide-what-to-test
 - know-when-you-have-found-a-problem
 - port-forwarding
+- efcore-in-memory-provider
 - ephemeral-environments
 - do-you-know-which-environments-you-need-to-provision-when-starting-a-new-project
 ---