diff --git a/doc/NTMakefile b/doc/NTMakefile
index 7567fad4b..0299620ac 100644
--- a/doc/NTMakefile
+++ b/doc/NTMakefile
@@ -76,6 +76,7 @@ MAKEINFO = $(PERL) C:\msys64\usr\bin\makeinfo
 $(OBJ)\heimdal\index.html $(OBJ)\heimdal\Copyrights-and-Licenses.html: $(heimdal_TEXINFOS)
 	cd $(OBJ)
 	$(MAKEINFO) $(MAKEINFOFLAGS) --html heimdal.texi
+	-$(MKDIR) heimdal
 	cd $(SRCDIR)
 
 $(OBJ)\heimdal\toc.hhc: $(OBJ)\heimdal\Copyrights-and-Licenses.html
@@ -96,6 +97,7 @@ $(DOCDIR)\heimdal.chm: $(OBJ)\heimdal\heimdal.hhp $(OBJ)\heimdal\toc.hhc
 $(OBJ)\hx509\index.html $(OBJ)\hx509\How-to-use-the-PKCS11-module.html: $(hx509_TEXINFOS)
 	cd $(OBJ)
 	$(MAKEINFO) $(MAKEINFOFLAGS) --html hx509.texi
+	-$(MKDIR) hx509
 	cd $(SRCDIR)
 
 $(OBJ)\hx509\toc.hhc: $(OBJ)\hx509\How-to-use-the-PKCS11-module.html