diff --git a/lib/pddlparse/src/pddlparse/detail/parsing/Action.cpp b/lib/pddlparse/src/pddlparse/detail/parsing/Action.cpp
index af4e333..774024e 100644
--- a/lib/pddlparse/src/pddlparse/detail/parsing/Action.cpp
+++ b/lib/pddlparse/src/pddlparse/detail/parsing/Action.cpp
@@ -150,11 +150,10 @@ void ActionParser::parsePreconditionSection(ast::Action &action)
 
 	tokenizer.expect<std::string>(":precondition");
 
+	ASTContext astContext(m_domain);
 	VariableStack variableStack;
 	variableStack.push(&action.parameters);
 
-	ASTContext astContext(m_domain);
-
 	action.precondition = parsePrecondition(m_context, astContext, variableStack);
 }
 
@@ -166,11 +165,10 @@ void ActionParser::parseEffectSection(ast::Action &action)
 
 	tokenizer.expect<std::string>(":effect");
 
+	ASTContext astContext(m_domain);
 	VariableStack variableStack;
 	variableStack.push(&action.parameters);
 
-	ASTContext astContext(m_domain);
-
 	action.effect = parseEffect(m_context, astContext, variableStack);
 }