diff --git a/scripts/makefile.ne12bsd b/scripts/makefile.ne12bsd
index 48c345246..4b36ca919 100644
--- a/scripts/makefile.ne12bsd
+++ b/scripts/makefile.ne12bsd
@@ -26,6 +26,10 @@ MAN=	libpng.3 libpngpf.3 png.5
 
 CPPFLAGS+=-I${.CURDIR}
 
+# Pre-built configuration
+# See scripts/pnglibconf.mak for more options
+PNGLIBCONF_H_PREBUILT= scripts/pnglibconf.h.prebuilt
+
 # We should be able to do something like this instead of the manual
 # uncommenting, but it core dumps for me at the moment:
 # .if ${MACHINE_ARCH} == "i386"