diff --git a/templates/course/lecturerMassInput/layout.hamlet b/templates/course/lecturerMassInput/layout.hamlet
index 223ed386e..65352dd95 100644
--- a/templates/course/lecturerMassInput/layout.hamlet
+++ b/templates/course/lecturerMassInput/layout.hamlet
@@ -7,5 +7,5 @@ $newline never
         <td>
           ^{fvInput (delButtons ! coord)}
   <tfoot>
-    <tr .massinput__cell>
+    <tr .massinput__cell.massinput__cell--add>
       ^{addWdgts ! (0, 0)}
diff --git a/templates/sheetCorrectors/layout.hamlet b/templates/sheetCorrectors/layout.hamlet
index bd28b651d..172f813f8 100644
--- a/templates/sheetCorrectors/layout.hamlet
+++ b/templates/sheetCorrectors/layout.hamlet
@@ -14,5 +14,5 @@ $newline never
         <td>
           ^{fvInput (delButtons ! coord)}
   <tfoot>
-    <tr .massinput__cell>
+    <tr .massinput__cell.massinput__cell--add>
       ^{addWdgts ! (0, 0)}
diff --git a/templates/widgets/massinput/list/layout.hamlet b/templates/widgets/massinput/list/layout.hamlet
index 5c747e041..0af005b4e 100644
--- a/templates/widgets/massinput/list/layout.hamlet
+++ b/templates/widgets/massinput/list/layout.hamlet
@@ -8,7 +8,7 @@ $newline never
         <td>
           ^{fvInput (delButtons ! coord)}
   <tfoot>
-    <tr .massinput__cell>
+    <tr .massinput__cell.massinput__cell--add>
       <td>
       <td>
         ^{addWdgts ! (0, 0)}
diff --git a/templates/widgets/massinput/row.hamlet b/templates/widgets/massinput/row.hamlet
index 17d909baa..f26de8b05 100644
--- a/templates/widgets/massinput/row.hamlet
+++ b/templates/widgets/massinput/row.hamlet
@@ -3,5 +3,5 @@
     <li .massinput__cell data-massinput-coord=#{toPathPiece cellCoord}>
       ^{cell}
   $maybe add <- addWidget
-    <li .massinput__cell>
+    <li .massinput__cell.massinput__cell--add>
       ^{add}