diff --git a/tools/Makefile b/tools/Makefile
index d28e489..5bb4f16 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -3,6 +3,8 @@ BBFUNCS = ../libbubulles.a
 
 OPT = -Wall -Wextra -g -DDEBUG_LEVEL=0 -DMUST_ABORT=0
 
+all:	read_obj export_evblob essai_faces
+
 # ---------
 
 read_obj:	read_obj.c Makefile importobj.o rdwredges.o		\
@@ -26,3 +28,5 @@ rdwredges.o:	rdwredges.c objtrucs.h				\
 
 essai_faces:	essai_faces.c Makefile
 	$(CC) $(OPT)  $< -o $@
+
+# have a nice day !