diff --git a/config/bind.sty b/config/bind.sty
index 2cc58929f8020261c7cf9271ed0445193619ad71..09ead5f72edeec25ad0ff47acd1fc57737fd85b0 100644
--- a/config/bind.sty
+++ b/config/bind.sty
@@ -59,7 +59,7 @@ bookmarks=true]%
 
 \newcommand*{\externalReferent}[1]{
 	\newtoggle{#1}
-	\IfFileExists{../#1/main.tex}{
+	\IfFileExists{../#1/main.aux}{
 		\makeatletter
 		\@addtofilelist{../#1/main.tex}
 		\@addtofilelist{../#1/main.aux}%