diff --git a/src/plugins/platforms/wayland/qwaylandinputdevice.cpp b/src/plugins/platforms/wayland/qwaylandinputdevice.cpp
index 46b84f4570b..78e75d7b139 100644
--- a/src/plugins/platforms/wayland/qwaylandinputdevice.cpp
+++ b/src/plugins/platforms/wayland/qwaylandinputdevice.cpp
@@ -1165,7 +1165,7 @@ void QWaylandInputDevice::Keyboard::keyboard_keymap(uint32_t format, int32_t fd,
         return;
     }
 
-    char *map_str = static_cast<char *>(mmap(nullptr, size, PROT_READ, MAP_SHARED, fd, 0));
+    char *map_str = static_cast<char *>(mmap(nullptr, size, PROT_READ, MAP_PRIVATE, fd, 0));
     if (map_str == MAP_FAILED) {
         close(fd);
         return;