diff --git a/packaging/docker/Dockerfile.alpine b/packaging/docker/Dockerfile.alpine
index 88947c4a5..8fb502244 100644
--- a/packaging/docker/Dockerfile.alpine
+++ b/packaging/docker/Dockerfile.alpine
@@ -100,6 +100,9 @@ RUN --security=insecure \
 	bash deps.sh && \
 	ldconfig.orig /usr/local/lib /usr/lib
 
+ENV LC_ALL C.UTF-8 
+ENV LANG C.UTF-8  
+
 FROM dev AS builder
 
 COPY . /villas/
diff --git a/packaging/docker/Dockerfile.centos b/packaging/docker/Dockerfile.centos
index 193650279..697c623ca 100644
--- a/packaging/docker/Dockerfile.centos
+++ b/packaging/docker/Dockerfile.centos
@@ -91,6 +91,9 @@ EXPOSE 443
 
 WORKDIR /villas
 
+ENV LC_ALL C.UTF-8 
+ENV LANG C.UTF-8  
+
 FROM dev AS app
 
 COPY . /villas/
diff --git a/packaging/docker/Dockerfile.debian b/packaging/docker/Dockerfile.debian
index d0c1c1656..2a9a75807 100644
--- a/packaging/docker/Dockerfile.debian
+++ b/packaging/docker/Dockerfile.debian
@@ -84,6 +84,9 @@ EXPOSE 443
 
 WORKDIR /villas
 
+ENV LC_ALL C.UTF-8 
+ENV LANG C.UTF-8  
+
 FROM dev AS app
 
 COPY . /villas/
diff --git a/packaging/docker/Dockerfile.debian-multiarch b/packaging/docker/Dockerfile.debian-multiarch
index 59e12d3b8..9b7cd9a91 100644
--- a/packaging/docker/Dockerfile.debian-multiarch
+++ b/packaging/docker/Dockerfile.debian-multiarch
@@ -114,6 +114,9 @@ EXPOSE 443
 
 WORKDIR /villas
 
+ENV LC_ALL C.UTF-8 
+ENV LANG C.UTF-8  
+
 FROM dev AS builder
 
 COPY . /villas/
diff --git a/packaging/docker/Dockerfile.fedora b/packaging/docker/Dockerfile.fedora
index d53463681..ac4c2263c 100644
--- a/packaging/docker/Dockerfile.fedora
+++ b/packaging/docker/Dockerfile.fedora
@@ -102,6 +102,9 @@ RUN ln -s /usr/lib64/tc /usr/lib/tc
 EXPOSE 80
 EXPOSE 443
 
+ENV LC_ALL C.UTF-8 
+ENV LANG C.UTF-8  
+
 WORKDIR /villas
 
 FROM dev AS app
diff --git a/packaging/docker/Dockerfile.fedora-minimal b/packaging/docker/Dockerfile.fedora-minimal
index 647a323bf..db31b698f 100644
--- a/packaging/docker/Dockerfile.fedora-minimal
+++ b/packaging/docker/Dockerfile.fedora-minimal
@@ -41,6 +41,9 @@ RUN dnf -y install \
 	fmt-devel \
 	libwebsockets-devel
 
+ENV LC_ALL C.UTF-8 
+ENV LANG C.UTF-8  
+
 FROM dev AS builder
 
 COPY . /villas/
diff --git a/packaging/docker/Dockerfile.rocky b/packaging/docker/Dockerfile.rocky
index 5816014be..6b80921c9 100644
--- a/packaging/docker/Dockerfile.rocky
+++ b/packaging/docker/Dockerfile.rocky
@@ -84,6 +84,9 @@ EXPOSE 443
 
 WORKDIR /villas
 
+ENV LC_ALL C.UTF-8 
+ENV LANG C.UTF-8  
+
 FROM dev AS app
 
 COPY . /villas/
diff --git a/packaging/docker/Dockerfile.ubuntu b/packaging/docker/Dockerfile.ubuntu
index a38fc4dca..7eb45572e 100644
--- a/packaging/docker/Dockerfile.ubuntu
+++ b/packaging/docker/Dockerfile.ubuntu
@@ -86,6 +86,9 @@ EXPOSE 443
 
 WORKDIR /villas
 
+ENV LC_ALL C.UTF-8 
+ENV LANG C.UTF-8  
+
 FROM dev AS app
 
 COPY . /villas/