Index: /issm/trunk-jpl/etc/environment.sh
===================================================================
--- /issm/trunk-jpl/etc/environment.sh	(revision 13978)
+++ /issm/trunk-jpl/etc/environment.sh	(revision 13979)
@@ -86,5 +86,5 @@
 
 DOXYGEN_DIR="$ISSM_DIR/externalpackages/doxygen/install"
-pathappend "$DOXYGEN_DIR/bin"
+pathprepend "$DOXYGEN_DIR/bin"
 
 AUTOTOOLS_DIR="$ISSM_DIR/externalpackages/autotools/install"