diff --git a/types/ember-testing-helpers/tsconfig.json b/types/ember-testing-helpers/tsconfig.json
index aaf474ecba..cd7634bd25 100644
--- a/types/ember-testing-helpers/tsconfig.json
+++ b/types/ember-testing-helpers/tsconfig.json
@@ -14,7 +14,8 @@
         ],
         "types": [],
         "noEmit": true,
-        "forceConsistentCasingInFileNames": true
+        "forceConsistentCasingInFileNames": true,
+        "allowSyntheticDefaultImports": true
     },
     "files": [
         "index.d.ts",
diff --git a/types/ember/tsconfig.json b/types/ember/tsconfig.json
index d2f27dfec9..fbc4052a08 100644
--- a/types/ember/tsconfig.json
+++ b/types/ember/tsconfig.json
@@ -14,10 +14,11 @@
         ],
         "types": [],
         "noEmit": true,
-        "forceConsistentCasingInFileNames": true
+        "forceConsistentCasingInFileNames": true,
+        "allowSyntheticDefaultImports": true
     },
     "files": [
         "index.d.ts",
         "ember-tests.ts"
     ]
-}
\ No newline at end of file
+}