1 files changed, 3 insertions, 2 deletions

diff --git a/archival/libunarchive/open_transformer.c b/archival/libunarchive/open_transformer.c
index f8f587e8d..355613a67 100644
--- a/archival/libunarchive/open_transformer.c
+++ b/archival/libunarchive/open_transformer.c
@@ -46,8 +46,9 @@ int open_transformer(int src_fd,
                 xmove_fd(src_fd, 0);
                 xmove_fd(fd_pipe[1], 1);
                 va_start(ap, transform_prog);
-                BB_EXECVP(transform_prog, ap);
-                bb_perror_and_die("exec failed");
+                /* hoping that va_list -> char** on our CPU is working... */
+                BB_EXECVP(transform_prog, (void*)ap);
+                bb_perror_msg_and_die("exec failed");
 #endif
                 /* notreached */
         }