diff --git a/live-build/functions b/live-build/functions
index b3692b5e..c99812d3 100644
--- a/live-build/functions
+++ b/live-build/functions
@@ -555,7 +555,7 @@ _snap_preseed() {
             local snap_type=$(echo "$snap_info" | awk '/^type:/ { print $2 }')
 
             if [ "$snap_type" != base ]; then
-                local core_snap=$(echo "$snap_info" | grep '^base:' | awk '{print $2}')
+                local core_snap=$(echo "$snap_info" | awk '/^base:/ {print $2}')
 
                 # If snap info does not list a base use 'core'
                 core_snap=${core_snap:-core}