--- loncom/xml/lontexconvert.pm	2016/02/20 00:12:45	1.118
+++ loncom/xml/lontexconvert.pm	2016/04/09 14:48:13	1.119
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # TeX Conversion Module
 #
-# $Id: lontexconvert.pm,v 1.118 2016/02/20 00:12:45 raeburn Exp $
+# $Id: lontexconvert.pm,v 1.119 2016/04/09 14:48:13 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -548,7 +548,7 @@ sub postprocess_algebra {
     # $string =~s/\\fun/ /g;
 
     # sqrt(3,4) means the 4 root of 3
-    $string =~s/\\sqrt{([^,]+),([^\}]+)}/\\sqrt[$2]{$1}/gs;
+    $string =~s/\\sqrt\{([^,]+),([^\}]+)}/\\sqrt[$2]{$1}/gs;
 
     # log(3,4) means the log base 4 of 3
     $string =~s/\\log\\left\((.+?),(.+?)\\right\)/\\log_{$2}\\left($1\\right)/gs;