diff --git a/src/plasp/sas/TranslatorASP.cpp b/src/plasp/sas/TranslatorASP.cpp
index a2f7272..ec17ca4 100644
--- a/src/plasp/sas/TranslatorASP.cpp
+++ b/src/plasp/sas/TranslatorASP.cpp
@@ -22,6 +22,9 @@ TranslatorASP::TranslatorASP(const Description &description)
 
 void TranslatorASP::checkSupport() const
 {
+	if (m_description.usesActionCosts())
+		throw TranslatorException("Action costs are currently unsupported");
+
 	const auto &variables = m_description.variables();
 
 	std::for_each(variables.cbegin(), variables.cend(),
@@ -44,6 +47,9 @@ void TranslatorASP::checkSupport() const
 					if (!effect.conditions().empty())
 						throw TranslatorException("Conditional effects are currently unsupported");
 				});
+
+			if (operator_.costs() != 1)
+				throw TranslatorException("Action costs are currently unsupported");
 		});
 
 	if (!m_description.axiomRules().empty())