diff --git a/src/libguestfish.sh b/src/libguestfish.sh
index 21d8f28a00..15fa66658f 100755
--- a/src/libguestfish.sh
+++ b/src/libguestfish.sh
@@ -23,7 +23,7 @@ fi
 # The compiled in default I see when running `guestfish get-memsize`
 # is 1280. We need this because we are seeing issues from
 # buildextend-live when running gf-mksquashfs.
-[ "$arch" = "ppc64le" ] && export LIBGUESTFS_MEMSIZE=2048
+[ "$arch" = "ppc64le" ] && export LIBGUESTFS_MEMSIZE=3072
 
 # http://libguestfs.org/guestfish.1.html#using-remote-control-robustly-from-shell-scripts
 GUESTFISH_PID=