diff --git a/core/src/main/kotlin/org/nwapw/abacus/context/ChainSearchDelegate.kt b/core/src/main/kotlin/org/nwapw/abacus/context/ChainSearchDelegate.kt
index 64d933a..7f4e21a 100644
--- a/core/src/main/kotlin/org/nwapw/abacus/context/ChainSearchDelegate.kt
+++ b/core/src/main/kotlin/org/nwapw/abacus/context/ChainSearchDelegate.kt
@@ -24,7 +24,7 @@ class ChainSearchDelegate<out V>(private val valueGetter: EvaluationContext.() -
             currentRef = currentRef.parent ?: break
             returnedValue = currentRef.valueGetter()
         }
-        return returnedValue ?: throw ContextException()
+        return returnedValue ?: throw ContextException("context chain does not contain value")
     }
 
 }
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