diff --git a/Fonderie/interpolator.c b/Fonderie/interpolator.c
index 4719bdb5..873a3fbc 100644
--- a/Fonderie/interpolator.c
+++ b/Fonderie/interpolator.c
@@ -176,7 +176,8 @@ for (idx=0; idx<globbuf.gl_pathc; idx++) {
 				(int)globbuf.gl_pathc, cptr);
 	foo = fimg_load_from_dump(cptr, &B);
 	if (foo) {
-		fprintf(stderr, "load %s from dump -> %d\n", cptr, foo);
+		fprintf(stderr, "\n%s: load %s from dump -> %d\n", __func__,
+						cptr, foo);
 		continue;
 		}
 
diff --git a/Fonderie/single.c b/Fonderie/single.c
index cbb6e12b..ea17aa50 100644
--- a/Fonderie/single.c
+++ b/Fonderie/single.c
@@ -51,7 +51,7 @@ if (foo) {
 	return -2;
 	}
 if (S_IFDIR != (stbuf.st_mode & S_IFMT)) {
-	fprintf(stderr, "! %s must be a directory\n", dest);
+	fprintf(stderr, "%s: %s must be a directory\n", __func__, dest);
 	return -3;
 	}
 
diff --git a/Fonderie/singlepass.c b/Fonderie/singlepass.c
index ee53161e..ed1af820 100644
--- a/Fonderie/singlepass.c
+++ b/Fonderie/singlepass.c
@@ -84,6 +84,10 @@ for (idx=0; idx<globbuf.gl_pathc; idx++) {
 	else	{
 		foo = fimg_load_from_dump(fname, &image);
 		}
+	if (verbosity > 1) {
+		fprintf(stderr, "%s: image '%s' loaded in %p\n",
+					__func__, fname, &image);
+		}
 	if (foo) {
 		fprintf(stderr, "get image -> %d\n", foo);
 		return -1;