diff --git a/manon/filter-variables.scss b/manon/filter-variables.scss
index b8d908cf..36045852 100644
--- a/manon/filter-variables.scss
+++ b/manon/filter-variables.scss
@@ -35,4 +35,7 @@
   --filter-button-icon-font-family: var(--icon-font-family);
   --filter-button-icon-font-size: var(--icon-font-size);
   --filter-button-icon-font-weight: bold;
+
+  /* To center text within the button set the line-height to 1 */
+  --filter-button-icon-line-height: 1;
 }