diff --git a/rc/filetype/vhdl.kak b/rc/filetype/vhdl.kak
index 21452869..26efe0bb 100644
--- a/rc/filetype/vhdl.kak
+++ b/rc/filetype/vhdl.kak
@@ -93,7 +93,7 @@ evaluate-commands %sh[
 
     types="
         bit bit_vector
-        boolean
+        boolean boolean_vector
         character
         file_open_state file_origin_kind
         integer natural positive