diff --git a/packages/calendar/package.json b/packages/calendar/package.json
index 5d871b998..9f341f514 100644
--- a/packages/calendar/package.json
+++ b/packages/calendar/package.json
@@ -28,6 +28,7 @@
     "src",
     "stories",
     "test",
+    "test-helpers",
     "translations",
     "*.js"
   ],
diff --git a/packages/input-datepicker/package.json b/packages/input-datepicker/package.json
index 311f53f3a..e97b1cedd 100644
--- a/packages/input-datepicker/package.json
+++ b/packages/input-datepicker/package.json
@@ -31,6 +31,7 @@
     "src",
     "stories",
     "test",
+    "test-helpers",
     "translations",
     "*.js"
   ],
diff --git a/packages/localize/package.json b/packages/localize/package.json
index b64260b10..c53adbd97 100644
--- a/packages/localize/package.json
+++ b/packages/localize/package.json
@@ -28,6 +28,7 @@
     "src",
     "stories",
     "test",
+    "test-helpers",
     "translations",
     "*.js"
   ],
diff --git a/packages/validate/package.json b/packages/validate/package.json
index a7393c90f..31979dfc1 100644
--- a/packages/validate/package.json
+++ b/packages/validate/package.json
@@ -28,6 +28,7 @@
     "src",
     "stories",
     "test",
+    "test-helpers",
     "translations",
     "*.js"
   ],