diff --git a/src/analysis/unmodified.d b/src/analysis/unmodified.d
index 37576c9..7acc649 100644
--- a/src/analysis/unmodified.d
+++ b/src/analysis/unmodified.d
@@ -160,7 +160,8 @@ class UnmodifiedFinder : BaseAnalyzer
 			foreachStatement.low.accept(this);
 			interest--;
 		}
-		foreachStatement.declarationOrStatement.accept(this);
+		if (foreachStatement.declarationOrStatement !is null)
+			foreachStatement.declarationOrStatement.accept(this);
 	}
 
 	override void visit(const TraitsExpression)