diff --git a/cf/make-proto.pl b/cf/make-proto.pl
index 36a040ce6..4af21916b 100644
--- a/cf/make-proto.pl
+++ b/cf/make-proto.pl
@@ -4,7 +4,7 @@
 use Getopt::Std;
 use File::Compare;
 
-use JSON;
+use JSON::PP
 
 my $comment = 0;
 my $doxygen = 0;
@@ -70,7 +70,7 @@ if($opt_x) {
     my $EXP;
     local $/;
     open(EXP, '<', $opt_x) || die "open ${opt_x}";
-    my $obj = JSON->new->utf8->decode(<EXP>);
+    my $obj = JSON::PP->new->utf8->decode(<EXP>);
     close $EXP;
 
     foreach my $x (keys %$obj) {
diff --git a/configure.ac b/configure.ac
index cedb4c01f..cecd030e6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -56,7 +56,6 @@ if ! test -f "$srcdir/lib/asn1/der-protos.h" ||
     AC_KRB_PROG_PERL
     AC_KRB_PERL_MOD(Getopt::Std)
     AC_KRB_PERL_MOD(File::Compare)
-    AC_KRB_PERL_MOD(JSON)
 fi
 
 AC_KRB_PROG_YACC