diff --git a/kernel/Dockerfile b/kernel/Dockerfile
index 73f8fb09c..822bf620b 100644
--- a/kernel/Dockerfile
+++ b/kernel/Dockerfile
@@ -20,6 +20,7 @@ RUN apk add \
     mpc1-dev \
     mpfr-dev \
     ncurses-dev \
+    openssl-dev \
     patch \
     sed \
     squashfs-tools \