diff --git a/src/insets/InsetBibitem.cpp b/src/insets/InsetBibitem.cpp
index 22abdf02d6..ae6105bb62 100644
--- a/src/insets/InsetBibitem.cpp
+++ b/src/insets/InsetBibitem.cpp
@@ -36,6 +36,7 @@
 
 #include "frontends/alert.h"
 
+#include "support/lassert.h"
 #include "support/convert.h"
 #include "support/debug.h"
 #include "support/docstream.h"
@@ -67,11 +68,12 @@ InsetBibitem::InsetBibitem(Buffer * buf, InsetCommandParams const & p)
 
 InsetBibitem::~InsetBibitem()
 {
-	if (isBufferLoaded())
+	if (isBufferLoaded()) {
 		/* Coverity believes that this may throw an exception, but
 		 * actually this code path is not taken when buffer_ == 0 */
-		// coverity[fun_call_w_exception]
+		LATTEST(buffer_);
 		buffer().invalidateBibinfoCache();
+	}
 }