diff --git a/packages/x11/lib/libSM/build b/packages/x11/lib/libSM/build
index 4f85faf478..fe461219b1 100755
--- a/packages/x11/lib/libSM/build
+++ b/packages/x11/lib/libSM/build
@@ -13,7 +13,7 @@ cd $PKG_BUILD
             --sysconfdir=/etc \
             --enable-static \
             --disable-shared \
-            --enable-IPv6 \
+            --disable-IPv6 \
             --without-libuuid \
 #            --enable-unix-transport \
 #            --disable-tcp-transport \