diff --git a/R/column_spec.R b/R/column_spec.R
index aa2f841..76df91b 100644
--- a/R/column_spec.R
+++ b/R/column_spec.R
@@ -146,9 +146,14 @@
   align_collapse <- ifelse(table_info$booktabs, "", "\\|")
   kable_align_old <- paste(table_info$align_vector, collapse = align_collapse)
 
-  table_info$align_vector[column] <- latex_column_align_builder(
-    table_info$align_vector_origin[column], width, bold, italic, monospace,
-    color, background, border_left, border_right)
+  table_info$align_vector[column] <- unlist(lapply(
+    table_info$align_vector_origin[column],
+    function(x) {
+      latex_column_align_builder(
+        x, width, bold, italic, monospace,
+        color, background, border_left, border_right)
+    }
+  ))
 
   kable_align_new <- paste(table_info$align_vector, collapse = align_collapse)