diff --git a/Fonderie/sfx.c b/Fonderie/sfx.c
index 42ec40a..2bc6af4 100644
--- a/Fonderie/sfx.c
+++ b/Fonderie/sfx.c
@@ -29,7 +29,8 @@ int		Os, Od;			/* offset of lines */
 int		wsz;
 int		ya, y2;
 
-fprintf(stderr, "%s: image width is %d\n", __func__, pimg->width);
+if (verbosity) fprintf(stderr, "%s: image width is %d\n",
+					__func__, pimg->width);
 
 rowpix = calloc(pimg->width, sizeof(float));
 if (NULL==rowpix) {
@@ -38,7 +39,7 @@ if (NULL==rowpix) {
 	}
 
 wsz = pimg->width * sizeof(float);
-fprintf(stderr, "%s: wsx = %d\n", __func__, wsz);
+if (verbosity) fprintf(stderr, "%s: wsx = %d\n", __func__, wsz);
 
 for (ya=0; ya<pimg->height/2; ya++) {