collect variables bug solved

Former-commit-id: fd697827d6 [formerly ffe0fab544] Former-commit-id: b7ff7b608c
8 years ago · bf94b004cc
1 changed files with 1 additions and 1 deletions
--- a/src/storage/expressions/UnaryExpression.cpp
+++ b/src/storage/expressions/UnaryExpression.cpp
@ -18,7 +18,7 @@ namespace storm {
        }

        void UnaryExpression::gatherVariables(std::set<storm::expressions::Variable>& variables) const {
-			return;
+			return this->getOperand()->gatherVariables(variables);
 		}
        
        std::shared_ptr<BaseExpression const> const& UnaryExpression::getOperand() const {