diff --git a/tools/amalg.janet b/tools/amalg.janet
index fee4cdde..de5f4392 100644
--- a/tools/amalg.janet
+++ b/tools/amalg.janet
@@ -1,10 +1,8 @@
 # Creates an amalgamated janet.c
 
 # Head
-(def {:year YY :month MM :month-day DD} (os/date))
 (print "/* Amalgamated build - DO NOT EDIT */")
-(print "/* Generated " YY "-" (inc MM) "-" (inc DD)
-       " with janet version " janet/version "-" janet/build " */")
+(print "/* Generated from janet version " janet/version "-" janet/build " */")
 (print "#define JANET_BUILD \"" janet/build "\"")
 (print ```#define JANET_AMALG```)
 (print ```#include "janet.h"```)