diff --git a/src/sfProject.ts b/src/sfProject.ts
index 77f0c04a7..c297d6840 100644
--- a/src/sfProject.ts
+++ b/src/sfProject.ts
@@ -729,10 +729,14 @@ export class SfProject {
 
 /** differentiate between the Base PackageDir (path, maybe default) and the Packaging version (package and maybe a LOT of other fields) by whether is has the `package` property */
 export const isPackagingDirectory = (packageDir: PackageDir): packageDir is PackagePackageDir =>
-  'package' in packageDir && typeof packageDir.package === 'string';
+  isPackagingDir(packageDir);
+
+/** differentiate between the Base PackageDir (path, maybe default) and the Packaging version (package and maybe a LOT of other fields) by whether is has the `package` property */
 export const isNamedPackagingDirectory = (packageDir: NamedPackageDir): packageDir is NamedPackagingDir =>
-  'package' in packageDir && typeof packageDir.package === 'string';
+  isPackagingDir(packageDir);
 
+const isPackagingDir = (packageDir: PackageDir | NamedPackageDir): boolean =>
+  'package' in packageDir && typeof packageDir.package === 'string';
 /**
  * there is no notion of uniqueness in package directory entries
  * so an attempt of matching an existing entry is a bit convoluted