diff --git a/src/Buffer.cpp b/src/Buffer.cpp
index 6df8b06129..10703f8bcb 100644
--- a/src/Buffer.cpp
+++ b/src/Buffer.cpp
@@ -2051,7 +2051,6 @@ bool Buffer::isInternal() const
 }
 
 
-// FIXME: this function should be moved to buffer_pimpl.C
 void Buffer::markDirty()
 {
 	if (d->lyx_clean) {