diff --git a/Fonderie/interpolator.c b/Fonderie/interpolator.c
index 1555dc7..f9aaba9 100644
--- a/Fonderie/interpolator.c
+++ b/Fonderie/interpolator.c
@@ -66,7 +66,7 @@ fprintf(stderr, "IdxValues array at %p\n", idxvalues);
 /* compute all the needed values */
 for (idx=0; idx<nombre; idx++) {
 	filename = ptr_glob->gl_pathv[idx];
-	foo = get_float_metric_from_file(filename, &metrique);
+	foo = get_float_metric_a_from_file(filename, &metrique);
 	if (foo) {
 		fprintf(stderr, "%s: err %d get metric of '%s'\n", __func__,
 				foo, filename);
diff --git a/Fonderie/metriques.c b/Fonderie/metriques.c
index d78116e..05e400a 100644
--- a/Fonderie/metriques.c
+++ b/Fonderie/metriques.c
@@ -13,7 +13,7 @@ extern int		verbosity;
 /*
  *	premier essai...
  */
-int get_float_metric(FloatImg *pimg, float *where)
+int get_float_metric_a(FloatImg *pimg, float *where)
 {
 float		means[4];
 int		foo;
@@ -31,7 +31,7 @@ if (foo) {
 return 0;
 }
 /*   --------------------------------------------------------------   */
-int get_float_metric_from_file(char *fname, float *where)
+int get_float_metric_a_from_file(char *fname, float *where)
 {
 FloatImg	image;
 int		foo;
@@ -43,7 +43,7 @@ if (foo) {
 	return foo;
 	}
 fval = -1.0;				/* sensible default value */
-foo = get_float_metric(&image, &fval);
+foo = get_float_metric_a(&image, &fval);
 *where = fval;
 
 // fprintf(stderr, "metric of '%s' = %f\n", fname, fval);
diff --git a/Fonderie/metriques.h b/Fonderie/metriques.h
index e4fcadb..5c76664 100644
--- a/Fonderie/metriques.h
+++ b/Fonderie/metriques.h
@@ -6,7 +6,7 @@
 
 /*		first experiments */
 
-int get_float_metric(FloatImg *pimg, float *where);
-int get_float_metric_from_file(char *imgname, float *where);
+int get_float_metric_a(FloatImg *pimg, float *where);
+int get_float_metric_a_from_file(char *imgname, float *where);
 
 /*   --------------------------------------------------------------   */