diff --git a/src/CsProj/FileSystem/DotNetFileSystemProvider.cs b/src/CsProj/FileSystem/DotNetFileSystemProvider.cs
index 0bc75d2..a5a9211 100644
--- a/src/CsProj/FileSystem/DotNetFileSystemProvider.cs
+++ b/src/CsProj/FileSystem/DotNetFileSystemProvider.cs
@@ -22,7 +22,7 @@ public IEnumerable<string> List(string path)
         /// <returns></returns>
         public bool IsCsProjectFile(string path)
         {
-            return File.Exists(path) && (path.EndsWith(".csproj") || path.EndsWith(".targets"));
+            return File.Exists(path) && (path.EndsWith(".csproj") || path.EndsWith(".targets") || path.EndsWith(".props"));
         }
 
         /// <summary>