diff --git a/docs/guide/input_vars.md b/docs/guide/input_vars.md
index de2bb03..fb1f7ee 100644
--- a/docs/guide/input_vars.md
+++ b/docs/guide/input_vars.md
@@ -3,7 +3,7 @@ Input variables
 
 This section contains documentation of input variables in a format that is easy to search and print.
 The input variables are ordered alphabetically by name.
-There are no subsections, just a long list of input variables that Tax-Calculator is programmed to use in its calculations.
+There are no subsections, just a long list of input variables that Taxcalc-Payroll is programmed to use in its calculations.
 The Availability information indicates which input data files contain the variable.
 
 
diff --git a/docs/guide/output_vars.md b/docs/guide/output_vars.md
index 2ecf728..cf5a7d3 100644
--- a/docs/guide/output_vars.md
+++ b/docs/guide/output_vars.md
@@ -3,7 +3,7 @@ Output variables
 
 This section contains documentation of output variables in a format that is easy to search and print.
 The output variables are ordered alphabetically by name.
-There are no subsections, just a long list of output variables that Tax-Calculator is programmed to calculate.
+There are no subsections, just a long list of output variables that Taxcalc-Payroll is programmed to calculate.
 
 
 ##  `niit`