diff --git a/build-mingw-w64-tools.sh b/build-mingw-w64-tools.sh
index 492726d..577f20c 100755
--- a/build-mingw-w64-tools.sh
+++ b/build-mingw-w64-tools.sh
@@ -79,7 +79,14 @@ else
 fi
 ANY_ARCH=$(echo $ARCHS | awk '{print $1}')
 
-cd mingw-w64-tools/widl
+cd mingw-w64-tools/gendef
+[ -z "$CLEAN" ] || rm -rf build${CROSS_NAME}
+mkdir -p build${CROSS_NAME}
+cd build${CROSS_NAME}
+../configure --prefix="$PREFIX" $CONFIGFLAGS
+$MAKE -j$CORES
+$MAKE install-strip
+cd ../../widl
 [ -z "$CLEAN" ] || rm -rf build${CROSS_NAME}
 mkdir -p build${CROSS_NAME}
 cd build${CROSS_NAME}