diff --git a/openfisca_aotearoa/parameters/disability_allowance/max_weekly_benefit.yaml b/openfisca_aotearoa/parameters/disability_allowance/max_weekly_benefit.yaml
deleted file mode 100644
index 75a46026..00000000
--- a/openfisca_aotearoa/parameters/disability_allowance/max_weekly_benefit.yaml
+++ /dev/null
@@ -1,5 +0,0 @@
-description: Maximum rate of disability allowance under section 85
-reference: https://www.legislation.govt.nz/act/public/2018/0032/latest/DLM6784880.html
-values:
-  2018-11-26:
-    value: 70.04
diff --git a/openfisca_aotearoa/parameters/social_security/disability_allowance/base.yaml b/openfisca_aotearoa/parameters/social_security/disability_allowance/base.yaml
index a9ca5b0a..1b8da8c8 100644
--- a/openfisca_aotearoa/parameters/social_security/disability_allowance/base.yaml
+++ b/openfisca_aotearoa/parameters/social_security/disability_allowance/base.yaml
@@ -1,4 +1,4 @@
-description: Child Disability Allowance
+description: Disability Allowance
 metadata:
 # currency or /1 (rate) or year (never used)
   unit: currency
diff --git a/openfisca_aotearoa/variables/acts/social_security/disability_allowance/disability_allowance.py b/openfisca_aotearoa/variables/acts/social_security/disability_allowance/disability_allowance.py
index 65552387..f2bde4c6 100644
--- a/openfisca_aotearoa/variables/acts/social_security/disability_allowance/disability_allowance.py
+++ b/openfisca_aotearoa/variables/acts/social_security/disability_allowance/disability_allowance.py
@@ -207,8 +207,8 @@ class disability_allowance__benefit(variables.Variable):
     reference = "https://www.legislation.govt.nz/act/public/2018/0032/latest/whole.html#DLM6783280"
 
     def formula_2018_11_26(persons, period, parameters):
-
-        return persons("disability_allowance__entitled", period) * parameters(period).disability_allowance.max_weekly_benefit
+        disability_allowance = parameters(period.first_day).social_security.disability_allowance.base.clauses["clause_2"]
+        return persons("disability_allowance__entitled", period) * disability_allowance
 
 
 class social_security__sole_parent(variables.Variable):