diff --git a/funcs/fimg-tiff.c b/funcs/fimg-tiff.c
index d00d0bf..bd66fdf 100644
--- a/funcs/fimg-tiff.c
+++ b/funcs/fimg-tiff.c
@@ -43,8 +43,9 @@ if (verbosity) {
 	}
 
 tiff = TIFFOpen(fname, "w");
-
-printf("tiff at %p\n", tiff);
+if (NULL==tiff) {
+	return -6;
+	}
 
 TIFFSetField(tiff, TIFFTAG_IMAGEWIDTH,  src->width);
 TIFFSetField(tiff, TIFFTAG_IMAGELENGTH, src->height);
@@ -60,7 +61,7 @@ TIFFSetField(tiff, TIFFTAG_SOFTWARE, ligne);
 
 foo = src->width * 3;
 foo = TIFFDefaultStripSize(tiff, foo);
-fprintf(stderr, "default strip size %d\n", foo);
+if (verbosity) fprintf(stderr, "default strip size %d\n", foo);
 
 TIFFSetField(tiff, TIFFTAG_ROWSPERSTRIP, foo);
 
diff --git a/tools/fimg2tiff.c b/tools/fimg2tiff.c
index b65c1ef..5589c51 100644
--- a/tools/fimg2tiff.c
+++ b/tools/fimg2tiff.c
@@ -46,7 +46,7 @@ if (grisaille) {
 
 foo = fimg_write_as_tiff(&fimg, dstname, 0);
 if (foo) {
-	fprintf(stderr, "%s: saving as png '%s' -> %d\n", __func__,
+	fprintf(stderr, "%s: saving as tiff '%s' -> %d\n", __func__,
 					dstname, foo);
 	return -1;
 	}
@@ -59,9 +59,9 @@ return 0;
 void help(int k)
 {
 
-puts("usage:\n\tfimg2tiff [options] foo.fimg bar.png");
+puts("usage:\n\tfimg2tiff [options] foo.fimg bar.tiff");
 puts("options:");
-puts("\t-g\tconvert to gray");
+// puts("\t-g\tconvert to gray");
 puts("\t-v\tincrease verbosity");
 if (verbosity) fimg_print_version(1);