diff --git a/packages-tests/Merge/ComposerJsonMerger/Fixture/with_extra.json b/packages-tests/Merge/ComposerJsonMerger/Fixture/with_extra.json
new file mode 100644
index 0000000000..196c7a8e58
--- /dev/null
+++ b/packages-tests/Merge/ComposerJsonMerger/Fixture/with_extra.json
@@ -0,0 +1,32 @@
+{
+  "extra": {
+    "laravel": {
+      "providers": [
+        "Illuminate\\Database\\ArtisanServiceProvider"
+      ]
+    }
+  }
+}
+-----
+{
+  "extra": {
+    "laravel": {
+      "providers": [
+        "ComposerEventDispatcher\\ComposerEventDispatcherServiceProvide",
+        "Aws\\AwsServiceProvice"
+      ]
+    }
+  }
+}
+-----
+{
+  "extra": {
+    "laravel": {
+      "providers": [
+        "Aws\\AwsServiceProvice",
+        "ComposerEventDispatcher\\ComposerEventDispatcherServiceProvide",
+        "Illuminate\\Database\\ArtisanServiceProvider"
+      ]
+    }
+  }
+}
\ No newline at end of file