diff --git a/src/makefile.in b/src/makefile.in
index b4ad821770c5babc1f6c8f0e589200d32886bb72..ab6209ffa950741c3728c5aebcd44bacbf0424aa 100644
--- a/src/makefile.in
+++ b/src/makefile.in
@@ -158,6 +158,8 @@ externs:
 	make -C ../extra/lrshift~ @EXTERNTARGET@
 	make -C ../extra/pique    @EXTERNTARGET@
 	make -C ../extra/sigmund~ @EXTERNTARGET@
+	make -C ../extra/pd~      @EXTERNTARGET@
+	make -C ../extra/stdout   @EXTERNTARGET@
 
 BINARYMODE=@binarymode@