diff --git a/framebuffer.cpp b/framebuffer.cpp
index 260c389..1532ec1 100644
--- a/framebuffer.cpp
+++ b/framebuffer.cpp
@@ -1139,7 +1139,7 @@ int mapFrameBufferLocked(struct private_module_t* module)
 
     int err;
     size_t fbSize = roundUpToPageSize(finfo.line_length * info.yres_virtual);
-    module->framebuffer = new private_handle_t(dup(fd), fbSize,
+    module->framebuffer = new private_handle_t(fd, fbSize,
             private_handle_t::PRIV_FLAGS_USES_PMEM);
 
     module->numBuffers = info.yres_virtual / info.yres;