diff --git a/src/kshack/its.16 b/src/kshack/its.15
similarity index 97%
rename from src/kshack/its.16
rename to src/kshack/its.15
index e6f2050e..764e27b8 100755
--- a/src/kshack/its.16
+++ b/src/kshack/its.15
@@ -17,7 +17,7 @@
 .SET/TEST=0		;1 => Testing some new feature.
 
 MICROCODE VERSION/=<99:107>
-	UCV=263.
+	UCV=262.
 
 HARDWARE OPTIONS/=<90:92>
 	HWOPT=0