diff --git a/src/libmach/crack.c b/src/libmach/crack.c
index 3dfe254b..ffc3b06c 100644
--- a/src/libmach/crack.c
+++ b/src/libmach/crack.c
@@ -52,6 +52,7 @@ uncrackhdr(Fhdr *hdr)
 {
 	close(hdr->fd);
 	_delhdr(hdr);
+	free(hdr->cmd);
 	free(hdr);
 }