diff --git a/highlighters/main/main-highlighter.zsh b/highlighters/main/main-highlighter.zsh
index 21d2ae1..c341599 100644
--- a/highlighters/main/main-highlighter.zsh
+++ b/highlighters/main/main-highlighter.zsh
@@ -125,6 +125,10 @@ _zsh_highlight_main_highlighter()
 
   ZSH_HIGHLIGHT_TOKENS_COMMANDSEPARATOR=(
     '|' '||' ';' '&' '&&'
+    '|&'
+    '&!' '&|'
+    # ### 'case' syntax, but followed by a pattern, not by a command
+    # ';;' ';&' ';|'
   )
   ZSH_HIGHLIGHT_TOKENS_PRECOMMANDS=(
     'builtin' 'command' 'exec' 'nocorrect' 'noglob'
diff --git a/highlighters/main/test-data/commandseparator.zsh b/highlighters/main/test-data/commandseparator.zsh
index 383bd47..7c152ff 100644
--- a/highlighters/main/test-data/commandseparator.zsh
+++ b/highlighters/main/test-data/commandseparator.zsh
@@ -29,9 +29,11 @@
 
 ZSH_HIGHLIGHT_STYLES[commandseparator]=$unused_highlight
 
-BUFFER=':; pwd'
+BUFFER=':; pwd &! ls'
 
 expected_region_highlight=(
   "2 2 $ZSH_HIGHLIGHT_STYLES[commandseparator]" # ;
   "4 6 $ZSH_HIGHLIGHT_STYLES[builtin]" # pwd
+  "8 9 $ZSH_HIGHLIGHT_STYLES[commandseparator]" # &!
+  "11 12 $ZSH_HIGHLIGHT_STYLES[command]" # ls
 )