diff --git a/release/tools/arm.subr b/release/tools/arm.subr
index edce8ba64eec..97326c4d1fb7 100644
--- a/release/tools/arm.subr
+++ b/release/tools/arm.subr
@@ -109,7 +109,7 @@ arm_install_base() {
 		>> ${CHROOTDIR}/${DESTDIR}/etc/fstab
 	echo "/dev/msdosfs/MSDOSBOOT /boot/msdos msdosfs rw,noatime 0 0" \
 		>> ${CHROOTDIR}/${DESTDIR}/etc/fstab
-	echo "tmpfs /tmp tmpfs rw,mode=1777,size=30m 0 0" \
+	echo "tmpfs /tmp tmpfs rw,mode=1777,size=50m 0 0" \
 		>> ${CHROOTDIR}/${DESTDIR}/etc/fstab
 
 	local hostname