diff --git a/ChangeLog b/ChangeLog
index 50fe4d7f8..9db89afdd 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,7 @@
 2004-05-24  Alexandre Duret-Lutz  <adl@src.lip6.fr>
 
+	* src/tgbatest/ltl2tgba.cc (syntax): Keep options sorted.
+
 	* src/sanity/Makefile.am (EXTRA_DIST): Distribute 80columns.test
 	and style.test.
 
diff --git a/src/tgbatest/ltl2tgba.cc b/src/tgbatest/ltl2tgba.cc
index 6dcc47e2b..89ecd3d32 100644
--- a/src/tgbatest/ltl2tgba.cc
+++ b/src/tgbatest/ltl2tgba.cc
@@ -77,6 +77,12 @@ syntax(char* prog)
             << "  -p   branching postponement (implies -f)" << std::endl
 	    << "  -r   display the relation BDD, not the reachability graph"
 	    << std::endl
+	    << "  -r1  reduce formula using basic rewriting" << std::endl
+	    << "  -r2  reduce formula using class of eventuality and "
+	    << "and universality" << std::endl
+	    << "  -r3  reduce formula using implication between "
+	    << "sub-formulae" << std::endl
+	    << "  -r4  reduce formula using all rules" << std::endl
 	    << "  -R   same as -r, but as a set" << std::endl
 	    << "  -s   convert to explicit automata, and number states "
 	    << "in DFS order" << std::endl
@@ -92,17 +98,7 @@ syntax(char* prog)
 	    << "  -X   do not compute an automaton, read it from a file"
 	    << std::endl
 	    << "  -y   do not merge states with same symbolic representation "
-	    << "(implies -f)" << std::endl
-	    << "  -r1  to reduce formula using basic rewriting"
-	    << std::endl
-	    << "  -r2  to reduce formula using class of eventuality and "
-	    << "and universality"
-	    << std::endl
-	    << "  -r3  to reduce formula using implication between "
-	    << "two formula"
-	    << std::endl
-	    << "  -r4  to reduce formula using all rules"
-	    << std::endl;
+	    << "(implies -f)" << std::endl;
   exit(2);
 }