diff --git a/compiler/main/heptc.ml b/compiler/main/heptc.ml
index 673439d..5032857 100644
--- a/compiler/main/heptc.ml
+++ b/compiler/main/heptc.ml
@@ -126,7 +126,7 @@ let main () =
         "-memalloc", Arg.Unit do_mem_alloc_and_typing, doc_memalloc;
         "-only-memalloc", Arg.Set do_mem_alloc, doc_memalloc_only;
         "-only-linear", Arg.Set do_linear_typing, doc_linear_only;
-        "-sch-interf", Arg.Set use_interf_scheduler, doc_interf_scheduler
+        "-old-scheduler", Arg.Set use_old_scheduler, doc_interf_scheduler
       ]
         compile errmsg;
   with
diff --git a/compiler/minils/main/mls_compiler.ml b/compiler/minils/main/mls_compiler.ml
index ff02acc..0e8fa70 100644
--- a/compiler/minils/main/mls_compiler.ml
+++ b/compiler/minils/main/mls_compiler.ml
@@ -47,7 +47,7 @@ let compile_program p =
 
   (* Scheduling *)
   let p =
-    if !Compiler_options.use_interf_scheduler then
+    if not !Compiler_options.use_old_scheduler then
       pass "Scheduling (with minimization of interferences)" true Schedule_interf.program p pp
     else
       pass "Scheduling" true Schedule.program p pp
diff --git a/compiler/utilities/global/compiler_options.ml b/compiler/utilities/global/compiler_options.ml
index d036020..686afaf 100644
--- a/compiler/utilities/global/compiler_options.ml
+++ b/compiler/utilities/global/compiler_options.ml
@@ -110,14 +110,14 @@ let do_mem_alloc_and_typing () =
   do_mem_alloc := true;
   do_linear_typing := true
 
-let use_interf_scheduler = ref false
+let use_old_scheduler = ref false
 
 let doc_verbose = "\t\t\tSet verbose mode"
 and doc_version = "\t\tThe version of the compiler"
 and doc_print_types = "\t\t\tPrint types"
 and doc_include = "<dir>\t\tAdd <dir> to the list of include directories"
 and doc_stdlib = "<dir>\t\tDirectory for the standard library"
-and doc_object_file = "\t\tOnly generate a .epo object file"
+and doc_object_file = "\t\t\tOnly generate a .epo object file"
 and doc_sim = "<node>\t\tCreate simulation for node <node>"
 and doc_hepts = "\t\tSimulation for hepts (graphical simulator)"
 and doc_locate_stdlib = "\t\tLocate standard libray"
@@ -127,7 +127,7 @@ and doc_target =
   "<lang>\tGenerate code in language <lang>\n\t\t\t(with <lang>=c,"
   ^ " java or z3z)"
 and doc_full_type_info = "\t\t\tPrint full type information"
-and doc_full_name = "\t\t\tPrint full variable name information"
+and doc_full_name = "\t\tPrint full variable name information"
 and doc_target_path =
   "<path>\tGenerated files will be placed in <path>\n\t\t\t(the directory is"
   ^ " cleaned)"
@@ -135,11 +135,11 @@ and doc_boolean = "\t\tTranslate enumerated values towards boolean vectors"
 and doc_deadcode = "\t\tDeadcode removal"
 and doc_nocaus = "\t\tDisable causality analysis"
 and doc_noinit = "\t\tDisable initialization analysis"
-and doc_assert = "<node>\t\tInsert run-time assertions for boolean node <node>"
-and doc_inline = "<node>\t\tInline node <node>"
+and doc_assert = "<node>\tInsert run-time assertions for boolean node <node>"
+and doc_inline = "<node>\tInline node <node>"
 and doc_itfusion = "\t\tEnable iterator fusion."
 and doc_tomato = "\t\tEnable automata minimization."
 and doc_memalloc = "\t\tEnable memory allocation and linear annotations"
-and doc_memalloc_only = "\t\tEnable memory allocation"
+and doc_memalloc_only = "\tEnable memory allocation"
 and doc_linear_only = "\t\tEnable linear annotations"
-and doc_interf_scheduler = "\t\tUse a scheduler that tries to minimise interferences"
+and doc_interf_scheduler = "\tUse the old scheduler"
diff --git a/test/check b/test/check
index 219cd45..9bb2e3b 100755
--- a/test/check
+++ b/test/check
@@ -10,7 +10,7 @@ shopt -s nullglob
 # script de test
 
 compilo=../../heptc
-coption=-memalloc
+coption="-memalloc"
 
 # compilateurs utilises pour les tests de gen. de code