diff --git a/kerberos5/lib/libasn1/Makefile b/kerberos5/lib/libasn1/Makefile
index dc1de5c6150..815d4c93426 100644
--- a/kerberos5/lib/libasn1/Makefile
+++ b/kerberos5/lib/libasn1/Makefile
@@ -116,7 +116,9 @@ ${GEN_KX509}: kx509.asn1
 
 .hx.h:
 	cp ${.IMPSRC} ${.TARGET}
-	
+
+NO_BEFOREBUILD_INCLUDES=
+
 .include <bsd.lib.mk>
 
 .SUFFIXES: .h .c .x .hx
diff --git a/kerberos5/lib/libhdb/Makefile b/kerberos5/lib/libhdb/Makefile
index a1ed8061289..2492ca126c9 100644
--- a/kerberos5/lib/libhdb/Makefile
+++ b/kerberos5/lib/libhdb/Makefile
@@ -96,6 +96,8 @@ ${GEN}: hdb.asn1
 .hx.h:
 	cp ${.IMPSRC} ${.TARGET}
 
+NO_BEFOREBUILD_INCLUDES=
+
 .include <bsd.lib.mk>
 
 .SUFFIXES: .h .c .x .hx
diff --git a/kerberos5/lib/libhx509/Makefile b/kerberos5/lib/libhx509/Makefile
index 3bffda6eb0e..dc2be994213 100644
--- a/kerberos5/lib/libhx509/Makefile
+++ b/kerberos5/lib/libhx509/Makefile
@@ -291,8 +291,11 @@ ${GEN_CRMF}: crmf.asn1
 .hx.h:
 	cp ${.IMPSRC} ${.TARGET}
 
+NO_BEFOREBUILD_INCLUDES=
+
 .include <bsd.lib.mk>
 
 .SUFFIXES: .h .c .x .hx
 
 .PATH: ${KRB5DIR}/lib/hx509 ${KRB5DIR}/lib/asn1 ${KRB5DIR}/doc/doxyout/hx509/man/man3
+