diff --git a/src/api-wrappers/CGWindowID.swift b/src/api-wrappers/CGWindowID.swift
index d8b39889..37a9c68f 100644
--- a/src/api-wrappers/CGWindowID.swift
+++ b/src/api-wrappers/CGWindowID.swift
@@ -18,8 +18,7 @@ extension CGWindowID {
     func screenshot() -> CGImage? {
         // CGSHWCaptureWindowList
         var windowId_ = self
-        let options: CGSWindowCaptureOptions = [.captureIgnoreGlobalClipShape, .windowCaptureNominalResolution]
-        let list = CGSHWCaptureWindowList(cgsMainConnectionId, &windowId_, 1, options).takeRetainedValue() as! [CGImage]
+        let list = CGSHWCaptureWindowList(cgsMainConnectionId, &windowId_, 1, [.ignoreGlobalClipShape, .nominalResolution]).takeRetainedValue() as! [CGImage]
         return list.first
 
 //        // CGWindowListCreateImage
diff --git a/src/api-wrappers/PrivateApis.swift b/src/api-wrappers/PrivateApis.swift
index de4e26f7..adaaa155 100644
--- a/src/api-wrappers/PrivateApis.swift
+++ b/src/api-wrappers/PrivateApis.swift
@@ -13,8 +13,10 @@ typealias CGSSpaceID = UInt64
 
 struct CGSWindowCaptureOptions: OptionSet {
     let rawValue: UInt32
-    static let windowCaptureNominalResolution = CGSWindowCaptureOptions(rawValue: 1 << 0x0200)
-    static let captureIgnoreGlobalClipShape = CGSWindowCaptureOptions(rawValue: 1 << 0x0800)
+    static let ignoreGlobalClipShape = CGSWindowCaptureOptions(rawValue: 1 << 11)
+    // on a retina display, 1px is spread on 4px, so nominalResolution is 1/4 of bestResolution
+    static let nominalResolution = CGSWindowCaptureOptions(rawValue: 1 << 9)
+    static let bestResolution = CGSWindowCaptureOptions(rawValue: 1 << 8)
 }
 
 enum SLPSMode: UInt32 {