diff --git a/assets/css/src/importExport.styl b/assets/css/src/importExport.styl
index 86c5a85d3b..07e0e01970 100644
--- a/assets/css/src/importExport.styl
+++ b/assets/css/src/importExport.styl
@@ -76,12 +76,12 @@ span
     &.select2-search--dropdown
       display none !important
 
-.import_validation_step
+.mailpoet_import_validation_step
   max-width: 600px
   display: flex
   flex-direction: column
 
-  .import_step_buttons
+  .mailpoet_import_step_buttons
     flex-direction: row
     margin-top: 1.5em
 
diff --git a/assets/js/src/subscribers/importExport/previous_next_step_buttons.jsx b/assets/js/src/subscribers/importExport/previous_next_step_buttons.jsx
index d564bfbe57..184d778586 100644
--- a/assets/js/src/subscribers/importExport/previous_next_step_buttons.jsx
+++ b/assets/js/src/subscribers/importExport/previous_next_step_buttons.jsx
@@ -10,7 +10,7 @@ const PreviousNextStepButtons = ({ canGoNext, onPreviousAction, onNextAction })
     { 'button-disabled': !canGoNext },
   );
   return (
-    <div className="import_step_buttons">
+    <div className="mailpoet_import_step_buttons">
       <button
         className="button-primary wysija button"
         type="button"
diff --git a/assets/js/src/subscribers/importExport/step_input_validation.jsx b/assets/js/src/subscribers/importExport/step_input_validation.jsx
index 50312ac2ba..6c640b1123 100644
--- a/assets/js/src/subscribers/importExport/step_input_validation.jsx
+++ b/assets/js/src/subscribers/importExport/step_input_validation.jsx
@@ -56,7 +56,7 @@ class StepInputValidation extends Component {
 
   render() {
     return (
-      <div className="import_validation_step">
+      <div className="mailpoet_import_validation_step">
         <label htmlFor="subscribers_agreed">
           <input
             type="checkbox"