diff --git a/Makefile.in b/Makefile.in
index 780f357..2539538 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -190,7 +190,8 @@
 @LIBRARIES_MANGLE_TRUE@MAYBE_LIBRARIES_MANGLE = mingw-w64-libraries/libmangle
 @LIBRARIES_PSEH_TRUE@MAYBE_LIBRARIES_PSEH = mingw-w64-libraries/pseh
 @TOOLS_GENDEF_TRUE@MAYBE_TOOLS_GENDEF = mingw-w64-tools/gendef
-SUBDIRS = $(MAYBE_HEADER) $(MAYBE_CRT) $(MAYBE_LIBRARIES_MANGLE) $(MAYBE_LIBRARIES_PSEH) $(MAYBE_TOOLS_GENDEF)
+@TOOLS_GENIDL_TRUE@MAYBE_TOOLS_GENIDL = mingw-w64-tools/genidl
+SUBDIRS = $(MAYBE_HEADER) $(MAYBE_CRT) $(MAYBE_LIBRARIES_MANGLE) $(MAYBE_LIBRARIES_PSEH) $(MAYBE_TOOLS_GENDEF) $(MAYBE_GENIDL)
 DISTCHECK_CONFIGURE_FLAGS = --with-headers --with-crt --with-libraries=all --with-tools=all
 all: config.h
 	$(MAKE) $(AM_MAKEFLAGS) all-recursive