diff --git a/lib/spectrum.zsh b/lib/spectrum.zsh
index 97f5c360a..31e37792c 100644
--- a/lib/spectrum.zsh
+++ b/lib/spectrum.zsh
@@ -7,6 +7,7 @@ typeset -AHg FX FG BG
 FX=(
   reset     "%{%}"
   bold      "%{%}" no-bold      "%{%}"
+  dim       "%{%}" no-dim       "%{%}"
   italic    "%{%}" no-italic    "%{%}"
   underline "%{%}" no-underline "%{%}"
   blink     "%{%}" no-blink     "%{%}"