diff --git a/form.tex b/form.tex
index b223202dabceb1f63620e47dc6386fb69e073c05..627cdc41b75fe4e9eee03118a9ae726a000f6c37 100644
--- a/form.tex
+++ b/form.tex
@@ -32,7 +32,7 @@
     \addtolength{\formboxwidth}{-2\fboxrule}%
     \fbox{\parbox[height=10em]{\formboxwidth}{%
         \vspace{1.3ex}\smash{\small{}#3}\vspace{1.2ex}\\%
-        \TextField[height=#1, width=\formboxwidth, borderwidth=0pt, name=#3]{}
+        \TextField[charsize=0pt, height=#1, width=\formboxwidth, borderwidth=0pt, name=#3]{}
     }}
 }
 
@@ -41,7 +41,7 @@
 \renewcommand{\chbox}[2][O]{%
     \setlength{\formboxsep}{\fboxsep}
     \setlength{\fboxsep}{1.5pt}%
-    \fbox{\CheckBox[height=3pt, width=3pt, borderwidth=0pt, name=#1#2]{}}~#2%
+    \fbox{\CheckBox[charsize=0pt, height=3pt, width=3pt, borderwidth=0pt, name=#1#2]{}}~#2%
     \setlength{\fboxsep}{\formboxsep}%
 }