diff --git a/dev/Dockerfile b/dev/Dockerfile
index 637c17e..d56d07d 100644
--- a/dev/Dockerfile
+++ b/dev/Dockerfile
@@ -61,7 +61,7 @@ RUN apt-get update && \
     locale-gen zh_CN.UTF-8 cs_CZ.UTF-8 da_DK.UTF-8 de_DE.UTF-8 es_ES.UTF-8 \
                en_US.UTF-8 fi_FI.UTF-8 fr_FR.UTF-8 he_IL.UTF-8 it_IT.UTF-8 \
                ja_JP.UTF-8 ko_KR.UTF-8 nl_NL.UTF-8 pl_PL.UTF-8 pt_PT.UTF-8 \
-               ru_RU.UTF-8 sv_SE.UTF-8 zh_TW.UTF-8 uk_UA.UTF-8 && \
+               ru_RU.UTF-8 sv_SE.UTF-8 sk_SK.UTF-8 zh_TW.UTF-8 uk_UA.UTF-8 && \
     # Install global npm package
     npm i lv_font_conv -g && \
     # Set up Rob Savoury's PPA for newer SDL2