diff --git a/tests/fixtures/core/config/package_errors/packages/configuration.yaml b/tests/fixtures/core/config/package_errors/packages/configuration.yaml
index 498eca0edac..19ec6e1e983 100644
--- a/tests/fixtures/core/config/package_errors/packages/configuration.yaml
+++ b/tests/fixtures/core/config/package_errors/packages/configuration.yaml
@@ -19,3 +19,6 @@ homeassistant:
     pack_4:
       adr_0007_3:
         host: blah.com
+    pack_5:
+      unknown_integration:
+        host: blah.com
diff --git a/tests/fixtures/core/config/package_errors/packages_include_dir_named/integrations/unknown_integration.yaml b/tests/fixtures/core/config/package_errors/packages_include_dir_named/integrations/unknown_integration.yaml
new file mode 100644
index 00000000000..d041b77ea29
--- /dev/null
+++ b/tests/fixtures/core/config/package_errors/packages_include_dir_named/integrations/unknown_integration.yaml
@@ -0,0 +1,3 @@
+# Unknown integration
+unknown_integration:
+  host: blah.com
diff --git a/tests/snapshots/test_config.ambr b/tests/snapshots/test_config.ambr
index 9d72d931fa2..fbf37e69ead 100644
--- a/tests/snapshots/test_config.ambr
+++ b/tests/snapshots/test_config.ambr
@@ -57,6 +57,7 @@
     'Package pack_1 setup failed. Integration adr_0007_1 cannot be merged. Dict expected in main config. (See <BASE_PATH>/fixtures/core/config/package_errors/packages/configuration.yaml:9).',
     'Package pack_2 setup failed. Integration adr_0007_2 cannot be merged. Expected a dict. (See <BASE_PATH>/fixtures/core/config/package_errors/packages/configuration.yaml:13).',
     "Package pack_4 setup failed. Integration adr_0007_3 has duplicate key 'host' (See <BASE_PATH>/fixtures/core/config/package_errors/packages/configuration.yaml:20).",
+    "Package pack_5 setup failed. Integration unknown_integration Integration 'unknown_integration' not found. (See <BASE_PATH>/fixtures/core/config/package_errors/packages/configuration.yaml:23).",
   ])
 # ---
 # name: test_package_merge_error[packages_include_dir_named]
@@ -64,6 +65,7 @@
     'Package adr_0007_1 setup failed. Integration adr_0007_1 cannot be merged. Dict expected in main config. (See <BASE_PATH>/fixtures/core/config/package_errors/packages_include_dir_named/integrations/adr_0007_1.yaml:2).',
     'Package adr_0007_2 setup failed. Integration adr_0007_2 cannot be merged. Expected a dict. (See <BASE_PATH>/fixtures/core/config/package_errors/packages_include_dir_named/integrations/adr_0007_2.yaml:2).',
     "Package adr_0007_3_2 setup failed. Integration adr_0007_3 has duplicate key 'host' (See <BASE_PATH>/fixtures/core/config/package_errors/packages_include_dir_named/integrations/adr_0007_3_2.yaml:1).",
+    "Package unknown_integration setup failed. Integration unknown_integration Integration 'unknown_integration' not found. (See <BASE_PATH>/fixtures/core/config/package_errors/packages_include_dir_named/integrations/unknown_integration.yaml:2).",
   ])
 # ---
 # name: test_yaml_error[basic]