1 files changed, 1 insertions, 1 deletions

diff --git a/language-web/src/main/js/index.tsx b/language-web/src/main/js/index.tsx
index 1b24eadb..13a62af0 100644
--- a/language-web/src/main/js/index.tsx
+++ b/language-web/src/main/js/index.tsx
@@ -24,7 +24,7 @@ enum TaxStatus {
 }
 
 % A child cannot have any dependents.
-error invalidTaxStatus(Person p) <->
+pred invalidTaxStatus(Person p) <->
   taxStatus(p, child),
   children(p, _q)
 ; taxStatus(p, retired),