diff --git a/build-aux/speedo.mk b/build-aux/speedo.mk
index 4f716d4b4..8e0ef4efa 100644
--- a/build-aux/speedo.mk
+++ b/build-aux/speedo.mk
@@ -383,7 +383,7 @@ speedo_pkg_libgcrypt_configure = --disable-static
 speedo_pkg_libksba_configure = --disable-static
 
 ifeq ($(TARGETOS),w32)
-speedo_pkg_gnupg_configure = --enable-gpg2-is-gpg --disable-g13
+speedo_pkg_gnupg_configure = --enable-gpg2-is-gpg --disable-g13 --disable-ntbtls
 else
 speedo_pkg_gnupg_configure = --disable-g13
 endif