diff --git a/starsky/starskytest/Architecture/ArchitectureTest.cs b/starsky/starskytest/Architecture/ArchitectureTest.cs
index b81cf5074..18a7f92c0 100644
--- a/starsky/starskytest/Architecture/ArchitectureTest.cs
+++ b/starsky/starskytest/Architecture/ArchitectureTest.cs
@@ -130,7 +130,7 @@ private static IList<string> GetPathParts(string directory)
 		return [.. directory.Split(["\\"], StringSplitOptions.None)];
 	}
 
-	private static IEnumerable<Match> GetProjectsFromSolutionFileContents(
+	private static MatchCollection GetProjectsFromSolutionFileContents(
 		string solutionFileContents)
 	{
 		var regex = ProjectFileNameRegex();