diff --git a/build-all.sh b/build-all.sh
index 005dd1264492ab0efdbc973b7472e47905198d46..1f50eee9495340d27040b4823feefd0493250460 100755
--- a/build-all.sh
+++ b/build-all.sh
@@ -137,7 +137,7 @@ scons $SCONSDEBUG || exit
 cd $IRDB_TRANSFORMS
 scons $SCONSDEBUG -j 3 || exit
 
-if [ -d $DAFFY_HOME ]; then
+if [[ -d $DAFFY_HOME ]] && [[ $(uname -p) == 'x86_64' ]]; then
 	cd $DAFFY_HOME
 	./setup_cfar.sh
 fi