diff --git a/src/haproxy.c b/src/haproxy.c
index 063ec5cb9..6079b9d1b 100644
--- a/src/haproxy.c
+++ b/src/haproxy.c
@@ -1592,7 +1592,7 @@ static void init_early(int argc, char **argv)
 		exit(EXIT_FAILURE);
 	}
 
-	chunk_initlen(&global.log_tag, progname, len, len);
+	chunk_initlen(&global.log_tag, strdup(progname), len, len);
 }
 
 /* handles program arguments. Very minimal parsing is performed, variables are