1 files changed, 5 insertions, 0 deletions
diff --git a/src/main/java/org/zwobble/couscous/interpreter/values/UnitInterpreterValue.java b/src/main/java/org/zwobble/couscous/interpreter/values/UnitInterpreterValue.java
index e221fee..1c184a4 100644
--- a/src/main/java/org/zwobble/couscous/interpreter/values/UnitInterpreterValue.java
+++ b/src/main/java/org/zwobble/couscous/interpreter/values/UnitInterpreterValue.java
@@ -32,4 +32,9 @@ public class UnitInterpreterValue implements InterpreterValue {
     public InterpreterValue getField(String fieldName) {
         throw new NoSuchField(fieldName);
     }
+
+    @Override
+    public void setField(String fieldName, InterpreterValue value) {
+        throw new NoSuchField(fieldName);
+    }
 }