diff --git a/Deprecation.md b/Deprecation.md
index 6468f46..01825b2 100644
--- a/Deprecation.md
+++ b/Deprecation.md
@@ -14,8 +14,8 @@
 
 | Module type                | State     |
 | -------------------------- | --------- |
-| `BUILD_HOST_TEST_CONFIG`   | Warning   |
-| `BUILD_TARGET_TEST_CONFIG` | Warning   |
+| `BUILD_HOST_TEST_CONFIG`   | Error     |
+| `BUILD_TARGET_TEST_CONFIG` | Error     |
 | `BUILD_*`                  | Available |
 
 ## Module Type Deprecation Process
diff --git a/core/deprecation.mk b/core/deprecation.mk
index cbc938a..9d57527 100644
--- a/core/deprecation.mk
+++ b/core/deprecation.mk
@@ -37,13 +37,13 @@
 # relevant BUILD_BROKEN_USES_BUILD_* variables, then these would move to
 # DEFAULT_ERROR_BUILD_MODULE_TYPES.
 DEFAULT_WARNING_BUILD_MODULE_TYPES :=$= \
-  BUILD_HOST_TEST_CONFIG \
-  BUILD_TARGET_TEST_CONFIG \
 
 # These are BUILD_* variables that are errors to reference, but you can set
 # BUILD_BROKEN_USES_BUILD_* in your BoardConfig.mk in order to turn them back
 # to warnings.
 DEFAULT_ERROR_BUILD_MODULE_TYPES :=$= \
+  BUILD_HOST_TEST_CONFIG \
+  BUILD_TARGET_TEST_CONFIG \
 
 # These are BUILD_* variables that are always errors to reference.
 # Setting the BUILD_BROKEN_USES_BUILD_* variables is also an error.