diff --git a/ChangeLog b/ChangeLog
index 10fca11de..547d089e8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,7 @@
 2025-11-12  Oliver Kiddle  <opk@zsh.org>
 
+	* 54071: Completion/Zsh/Type/_ps1234: fix prompt colour completion
+
 	* 54043, 54055 (tweaked to use "reset" as suggested by Mikael):
 	Doc/Zsh/zle.yo, Src/prompt.c, Src/Modules/hlgroup.c,
 	Src/Modules/watch.c, Src/Zle/complist.c, Src/Zle/zle.h,
diff --git a/Completion/Zsh/Type/_ps1234 b/Completion/Zsh/Type/_ps1234
index e4391dc00..b9031cf29 100644
--- a/Completion/Zsh/Type/_ps1234
+++ b/Completion/Zsh/Type/_ps1234
@@ -52,7 +52,7 @@ if compset -P '%[FK]'; then
     grp="$expl[expl[(i)-J]+1]"
     compadd "$expl[@]" "$suf[@]" $pre {0..$cols}
     for c in {0..$cols}; do
-      _comp_colors+=( "($grp)=${c}=${${${(%):-%F{$c\}}#?\[}%m}" )
+      _comp_colors+=( "($grp)=${c}=${${${${(%):-%F{$c\}}#?\[}%m}//:/;}" )
     done
   else
     _message -e terminal-colors "number"