diff --git a/Sources/GhosttyTerminalView.swift b/Sources/GhosttyTerminalView.swift
index e461e9d1..7855f1fc 100644
--- a/Sources/GhosttyTerminalView.swift
+++ b/Sources/GhosttyTerminalView.swift
@@ -3992,7 +3992,7 @@ class GhosttyNSView: NSView, NSUserInterfaceValidations {
         // AppKit text interpretation and send a single deterministic Ghostty key event.
         // This avoids intermittent drops after rapid split close/reparent transitions.
         let flags = event.modifierFlags.intersection(.deviceIndependentFlagsMask)
-        if flags.contains(.control) && !flags.contains(.command) && !flags.contains(.option) {
+        if flags.contains(.control) && !flags.contains(.command) && !flags.contains(.option) && !hasMarkedText() {
             ghostty_surface_set_focus(surface, true)
             var keyEvent = ghostty_input_key_s()
             keyEvent.action = event.isARepeat ? GHOSTTY_ACTION_REPEAT : GHOSTTY_ACTION_PRESS