diff --git a/19/emscripten/Dockerfile b/19/emscripten/Dockerfile
index 5864c3d..229b688 100644
--- a/19/emscripten/Dockerfile
+++ b/19/emscripten/Dockerfile
@@ -1,6 +1,6 @@
 FROM docker.io/library/fedora:41
 
-RUN dnf update -y && dnf install -y git cmake make gcc g++ nlohmann-json-devel autoreconf libtool openssl-devel libcurl-devel fontconfig-devel libzip-devel SDL2-devel zip speexdsp-devel ninja-build ccache
+RUN dnf update -y && dnf install -y git cmake make gcc g++ nlohmann-json-devel autoreconf libtool openssl-devel libcurl-devel fontconfig-devel libzip-devel SDL2-devel zip speexdsp-devel ninja-build hostname ccache
 
 WORKDIR /