diff --git a/csharp/ql/lib/semmle/code/csharp/dataflow/internal/rangeanalysis/SignAnalysisSpecific.qll b/csharp/ql/lib/semmle/code/csharp/dataflow/internal/rangeanalysis/SignAnalysisSpecific.qll
index 9691c8dffa7..04d0816a683 100644
--- a/csharp/ql/lib/semmle/code/csharp/dataflow/internal/rangeanalysis/SignAnalysisSpecific.qll
+++ b/csharp/ql/lib/semmle/code/csharp/dataflow/internal/rangeanalysis/SignAnalysisSpecific.qll
@@ -29,6 +29,8 @@ module Private {
 
   class CastExpr = RU::ExprNode::CastExpr;
 
+  class CastingExpr = CastExpr;
+
   class Type = CS::Type;
 
   class Expr = CS::ControlFlow::Nodes::ExprNode;