diff --git a/tmp/postinstall b/tmp/postinstall
index 025c358..314ae96 100644
--- a/tmp/postinstall
+++ b/tmp/postinstall
@@ -57,8 +57,8 @@
 #
 
 if ! grep firefox /etc/ld.so.conf >/dev/null 2>&1; then
-	echo "/opt/firefox/lib" >>/etc/ld.so.conf
+	echo "/opt/thunderbird/lib/thunderbird" >>/etc/ld.so.conf
 	if [ -d /opt/firefox/lib64 ]; then
-		echo "/opt/firefox/lib64" >>/etc/ld.so.conf
+		echo "/opt/thunderbird/lib64/thunderbird" >>/etc/ld.so.conf
 	fi
 fi