diff --git a/caimira/apps/calculator/static/js/co2_form.js b/caimira/apps/calculator/static/js/co2_form.js
index 39380562..40941a9e 100644
--- a/caimira/apps/calculator/static/js/co2_form.js
+++ b/caimira/apps/calculator/static/js/co2_form.js
@@ -337,7 +337,7 @@ function displayFittingData(json_response) {
 
   $("#disable_fitting_algorithm").prop("disabled", false);
   $("#ventilation_rate_fit").html(ventilation_table);
-  $("#generate_fitting_data").html("Fit data");
+  $("#generate_fitting_data").html("Confirm and Fit data");
   $("#generate_fitting_data").hide();
   $("#save_and_dismiss_dialog").show();
 }
diff --git a/caimira/apps/templates/base/calculator.form.html.j2 b/caimira/apps/templates/base/calculator.form.html.j2
index 78146499..47a68e18 100644
--- a/caimira/apps/templates/base/calculator.form.html.j2
+++ b/caimira/apps/templates/base/calculator.form.html.j2
@@ -375,7 +375,7 @@
             </div>
             <div class="modal-footer">
               <button type="button" id="disable_fitting_algorithm" class="btn btn-secondary dismiss_btn_frm_field" data-dismiss="modal" onclick="disableFittingAlgorithm()">Discard</button>
-              <button type="button" id="generate_fitting_data" class="btn btn-primary close_btn_frm_field" onclick="submitFittingAlgorithm('{{ get_calculator_url() }}/co2-fit/')" disabled>Fit data</button>
+              <button type="button" id="generate_fitting_data" class="btn btn-primary close_btn_frm_field" onclick="submitFittingAlgorithm('{{ get_calculator_url() }}/co2-fit/')" disabled>Confirm and Fit data</button>
               <button type="button" style="display: none" id="save_and_dismiss_dialog" class="btn btn-primary close_btn_frm_field" data-dismiss="modal">Use fit data</button>
             </div>
           </div>