diff --git a/macos/Sources/Ghostty/Ghostty.Input.swift b/macos/Sources/Ghostty/Ghostty.Input.swift
index 331fa087f..d49c284aa 100644
--- a/macos/Sources/Ghostty/Ghostty.Input.swift
+++ b/macos/Sources/Ghostty/Ghostty.Input.swift
@@ -9,12 +9,12 @@ extension Ghostty {
 
     /// Returns the event modifier flags set for the Ghostty mods enum.
     static func eventModifierFlags(mods: ghostty_input_mods_e) -> NSEvent.ModifierFlags {
-        var flags: [NSEvent.ModifierFlags] = [];
-        if (mods.rawValue & GHOSTTY_MODS_SHIFT.rawValue != 0) { flags.append(.shift) }
-        if (mods.rawValue & GHOSTTY_MODS_CTRL.rawValue != 0) { flags.append(.control) }
-        if (mods.rawValue & GHOSTTY_MODS_ALT.rawValue != 0) { flags.append(.option) }
-        if (mods.rawValue & GHOSTTY_MODS_SUPER.rawValue != 0) { flags.append(.command) }
-        return NSEvent.ModifierFlags(flags)
+        var flags = NSEvent.ModifierFlags(rawValue: 0);
+        if (mods.rawValue & GHOSTTY_MODS_SHIFT.rawValue != 0) { flags.insert(.shift) }
+        if (mods.rawValue & GHOSTTY_MODS_CTRL.rawValue != 0) { flags.insert(.control) }
+        if (mods.rawValue & GHOSTTY_MODS_ALT.rawValue != 0) { flags.insert(.option) }
+        if (mods.rawValue & GHOSTTY_MODS_SUPER.rawValue != 0) { flags.insert(.command) }
+        return flags
     }
 
     /// A map from the Ghostty key enum to the keyEquivalent string for shortcuts.