diff --git a/CHANGELOG.md b/CHANGELOG.md
index be025da94..ce58ea33a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -28,6 +28,7 @@
 - Fix public accessibility analysis false-positive for enum case parameter types.
 - Fix public accessibility analysis false-positive for properties initialized with generic specialized types.
 - Types associated with assign-only properties are no longer identified as unused until the property is removed.
+- Classes referenced in Info.plist as `NSPrincipalClass` and `WKExtensionDelegateClassName` are now retained.
 
 ## 2.17.1 (2023-12-04)
 
diff --git a/Sources/PeripheryKit/Indexer/InfoPlistParser.swift b/Sources/PeripheryKit/Indexer/InfoPlistParser.swift
index 60d46607d..3d9a3438b 100644
--- a/Sources/PeripheryKit/Indexer/InfoPlistParser.swift
+++ b/Sources/PeripheryKit/Indexer/InfoPlistParser.swift
@@ -4,7 +4,9 @@ import AEXML
 import Shared
 
 final class InfoPlistParser {
-    private static let elements = ["UISceneClassName", "UISceneDelegateClassName", "NSExtensionPrincipalClass", "CLKComplicationPrincipalClass"]
+    private static let elements = [
+        "UISceneClassName", "UISceneDelegateClassName", "NSPrincipalClass",
+        "NSExtensionPrincipalClass", "CLKComplicationPrincipalClass", "WKExtensionDelegateClassName"]
     private let path: FilePath
 
     required init(path: FilePath) {