diff --git a/src/insets/InsetCitation.cpp b/src/insets/InsetCitation.cpp
index 0e59af21f7..935da109f4 100644
--- a/src/insets/InsetCitation.cpp
+++ b/src/insets/InsetCitation.cpp
@@ -457,7 +457,7 @@ docstring InsetCitation::screenLabel() const
 }
 
 
-void InsetCitation::updateLabels(ParIterator const &, UpdateType utype)
+void InsetCitation::updateLabels(ParIterator const &, UpdateType)
 {
 	CiteEngine const engine = buffer().params().citeEngine();
 	if (cache.params == params() && cache.engine == engine)