diff --git a/Lib/essais.c b/Lib/essais.c
index affd7b4..2b48bcd 100644
--- a/Lib/essais.c
+++ b/Lib/essais.c
@@ -376,7 +376,7 @@ if ( NULL == (nucked=Image_clone(origine, 1)) ) {
 
 foo = Image_essai_zoom(origine, nucked, 1.18, 0.42, 0);
 if (foo) {
-	fprintf(stderr, "In %s, essai zoom -> %d\n", foo);
+	fprintf(stderr, "In %s, essai zoom -> %d\n", __func__, foo);
 	}
 Image_TGA_save("Pictures/aaaa-zoom.tga", nucked, 0);