diff --git a/src/gui/gcal-calendar-list.c b/src/gui/gcal-calendar-list.c
index 1cda3fc7..1a98b4ea 100644
--- a/src/gui/gcal-calendar-list.c
+++ b/src/gui/gcal-calendar-list.c
@@ -182,7 +182,7 @@ update_header_func (GtkListBoxRow *row,
         {
           header = g_object_new (GTK_TYPE_LABEL,
                                  "label", e_source_get_display_name (parent),
-                                 "css-classes", (const gchar * const []) { "heading", "dimmed", NULL },
+                                 "css-classes", (const gchar * const []) { "heading", NULL },
                                  "xalign", 0.0,
                                  "margin-top", 18,
                                  "margin-bottom", 6,
@@ -195,7 +195,7 @@ update_header_func (GtkListBoxRow *row,
     {
       header = g_object_new (GTK_TYPE_LABEL,
                              "label", e_source_get_display_name (parent),
-                             "css-classes", (const gchar * const []) { "heading", "dimmed", NULL },
+                             "css-classes", (const gchar * const []) { "heading", NULL },
                              "xalign", 0.0,
                              "margin-top", 18,
                              "margin-bottom", 6,