diff --git a/Fonderie/crapulator.c b/Fonderie/crapulator.c
index 6266cc52..146d3cc8 100644
--- a/Fonderie/crapulator.c
+++ b/Fonderie/crapulator.c
@@ -98,23 +98,6 @@ fimg_destroy(&img);
 return retval;
 }
 /* -------------------------------------------------------------- */
-static int desaturate(FloatImg *pimg)
-{
-FloatImg		img;
-int 			retval;
-fimg_clone(pimg, &img, 0);
-retval = fimg_desaturate(pimg, &img, 0);
-if (retval) {
-	fprintf(stderr, "%s : err desaturate %d\n",
-			__func__, retval);
-	exit(1);
-	}
-fimg_copy_data(&img, pimg);
-fimg_destroy(&img);
-
-return 0;
-}
-/* -------------------------------------------------------------- */
 /*
  *	This is the main filter engine used both for input and
  *	output processing. It can be called by the filterstack
@@ -193,7 +176,7 @@ switch (idFx) {
 		retval = insitu_filtre3x3(image, 0);
 		break;
 	case 14:
-		retval = desaturate(image);
+		retval = fimg_desaturate(image, image, 0);
 		break;
 	case 15:
 		retval = kill_a_few_lines(image, fval,