diff --git a/scribble-lib/scribble/scribble.tex b/scribble-lib/scribble/scribble.tex
index 1905e892..249fa4e7 100644
--- a/scribble-lib/scribble/scribble.tex
+++ b/scribble-lib/scribble/scribble.tex
@@ -83,8 +83,8 @@
 \newcommand{\textsuper}[1]{$^{\hbox{\textsmaller{#1}}}$}
 \newcommand{\intextcolor}[2]{\textcolor{#1}{#2}}
 \newcommand{\intextrgbcolor}[2]{\textcolor[rgb]{#1}{#2}}
-\newcommand{\incolorbox}[2]{{\fboxrule=0pt\fboxsep=0pt\colorbox{#1}{#2}}}
-\newcommand{\inrgbcolorbox}[2]{{\fboxrule=0pt\fboxsep=0pt\colorbox[rgb]{#1}{#2}}}
+\newcommand{\incolorbox}[2]{{\fboxrule=0pt\fboxsep=0pt\protect\colorbox{#1}{#2}}}
+\newcommand{\inrgbcolorbox}[2]{{\fboxrule=0pt\fboxsep=0pt\protect\colorbox[rgb]{#1}{#2}}}
 \newcommand{\plainlink}[1]{#1}
 \newcommand{\techoutside}[1]{#1}
 \newcommand{\techinside}[1]{#1}