diff --git a/first/em_path.h.src b/first/em_path.h.src
index 7fc589cc..d1a3bab6 100644
--- a/first/em_path.h.src
+++ b/first/em_path.h.src
@@ -4,4 +4,4 @@
 /* Access to the ACK tree and parts thereof */
 #define EM_DIR		"/usr/em"	/* The root directory for EM stuff */
 #define RTERR_PATH	"etc/pc_rt_errors"
-#define ACK_PATH	"lib/ack"
+#define ACK_PATH	"lib/descr"