Forgot to add hint definition for fail_rule

1 files changed, 2 insertions, 1 deletions

diff --git a/prolog/common.py b/prolog/common.py
index 16f7769..5187c65 100644
--- a/prolog/common.py
+++ b/prolog/common.py
@@ -19,6 +19,7 @@ hint_type = {
     'monkey_remove': HintPopup('monkey_remove', style='remove'),
     'noncapitalised_variable': Hint('noncapitalised_variable'),
     'noncapitalised_variable_markup': HintPopup('noncapitalised_variable_markup'),
+    'fail_rule': HintPopup('fail_rule'),
 }
 
 # Check program for syntax errors.
@@ -45,7 +46,7 @@ def hint(code, aux_code):
         t1 = tokens[i+1]
         t2 = tokens[i+2]
         if t.val == ':-' and t1.val in ('fail', 'false') and t2.val == '.':
-            hints += [{'id': 'fail_rule_markup', 'start': t.pos, 'end': t2.pos + len(t2.val)}]
+            hints += [{'id': 'fail_rule', 'start': t.pos, 'end': t2.pos + len(t2.val)}]
 
     # a,b,c are a bit dangerous when crossing the river exercise is being solved
     # what about potential numbers after letters?