diff --git a/R/cards.R b/R/cards.R
index 3d303f2d..3438dac6 100644
--- a/R/cards.R
+++ b/R/cards.R
@@ -1110,7 +1110,7 @@ bs4InfoBox <- function(title, value = NULL, subtitle = NULL, icon = shiny::icon(
 #' @author David Granjon, \email{dgranjon@@ymail.com}
 #'
 #' @export
-bs4TabCard <- function(..., id, selected = NULL, title = NULL, width = 6,
+bs4TabCard <- function(..., id = NULL, selected = NULL, title = NULL, width = 6,
                        height = NULL, side = c("left", "right"), type = NULL,
                        footer = NULL, status = NULL, solidHeader = FALSE, background = NULL,
                        collapsible = TRUE, collapsed = FALSE, closable = FALSE, maximizable = FALSE,
diff --git a/R/dashboardSidebar.R b/R/dashboardSidebar.R
index c187ded9..91198b35 100644
--- a/R/dashboardSidebar.R
+++ b/R/dashboardSidebar.R
@@ -365,7 +365,7 @@ bs4SidebarMenuItem <- function(text, ..., icon = NULL, badgeLabel = NULL, badgeC
 
   if (!is.null(icon)) {
     tagAssert(icon, type = "i")
-    icon$attribs$cl <- paste0(icon$attribs$cl, " nav-icon")
+    icon$attribs$class <- paste0(icon$attribs$class, " nav-icon")
   }
 
   if (!is.null(href) + !is.null(tabName) + (length(subItems) > 0) != 1) {