diff --git a/Fonderie/singlepass.c b/Fonderie/singlepass.c
index 9723af96..68a8946f 100644
--- a/Fonderie/singlepass.c
+++ b/Fonderie/singlepass.c
@@ -13,6 +13,7 @@
 
 #include  "../floatimg.h"
 
+#include  "utilfuncs.h"
 #include  "crapulator.h"
 #include  "filterstack.h"
 #include  "single.h"
@@ -198,6 +199,13 @@ if (repeat < 1) {
 	exit(2);
 	}
 
+foo = check_if_export_dir_is_valid(outdir, 0);
+if ( !foo ) {
+	fprintf(stderr, "** export dir (%s) not valid\n", outdir);
+	fprintf(stderr, "** may be you have to create it ?\n");
+	exit(1);
+	}
+
 foo = parse_filter_chain(FILTERS, filterchain);
 if (foo) {
 	fprintf(stderr, "err %d in parse_filter_chain\n", foo);