diff --git a/build.sh b/build.sh
index cd2a9ebf5e702b89edded3c8ab7cd412255d8f65..ab7a1faa37fe89a07627ed51ffa7677576b32d2b 100755
--- a/build.sh
+++ b/build.sh
@@ -97,6 +97,7 @@ pre_build()
 
     "$autobuild" configure --quiet -c $variant -- \
      -DPACKAGE:BOOL=ON \
+     -DUNATTENDED:BOOL=ON \
      -DRELEASE_CRASH_REPORTING:BOOL=ON \
      -DVIEWER_CHANNEL:STRING="\"$viewer_channel\"" \
      -DGRID:STRING="\"$viewer_grid\"" \