ひかないように

so as not to catch

→ ひく
phrase Rare #34,494
so as not to catch Here, ひく means “to catch” in the expression 風邪をひく (to catch a cold). ように expresses the aim of preventing something.
JA: 風邪をひかないように、暖かくしてね。
EN: Keep warm so you don't catch a cold.