diff --git a/demos/c_api_minimal_app/Makefile b/demos/c_api_minimal_app/Makefile
index 86e28febd5..5e2000bc49 100644
--- a/demos/c_api_minimal_app/Makefile
+++ b/demos/c_api_minimal_app/Makefile
@@ -43,7 +43,7 @@ clean:
 from_docker:
 	mkdir -p capi/$(DIST_OS)
 	docker run $(OVMS_CPP_DOCKER_IMAGE)-pkg:$(OVMS_CPP_IMAGE_TAG) bash -c \
-			"tar -c -C /ovms_pkg/$(BASE_OS) ovms.tar.gz ; sleep 2" | tar -x -C capi/$(DIST_OS)/ && cd ../../
+			"tar -c -C /ovms_pkg/$(BASE_OS) ovms.tar ; sleep 2" | tar -x -C capi/$(DIST_OS)/ && cd ../../
 	-docker rm -v $$(docker ps -a -q -f status=exited -f ancestor=$(OVMS_CPP_DOCKER_IMAGE)-pkg:$(OVMS_CPP_IMAGE_TAG))
 
 from_web:
diff --git a/demos/c_api_minimal_app/capi_files/Dockerfile.redhat b/demos/c_api_minimal_app/capi_files/Dockerfile.redhat
index 3c5dc003ef..36e378a0af 100644
--- a/demos/c_api_minimal_app/capi_files/Dockerfile.redhat
+++ b/demos/c_api_minimal_app/capi_files/Dockerfile.redhat
@@ -19,9 +19,9 @@ FROM $BASE_IMAGE as base_build
 SHELL ["/bin/bash", "-c"]
 RUN yum install -y xz git shadow-utils make gcc gcc-c++
 WORKDIR /
-COPY ovms.tar.gz /
+COPY ovms.tar /
 RUN env
-RUN tar -xf ovms.tar.gz
+RUN tar -xf ovms.tar
 RUN groupadd --gid 5000 ovms && \
     useradd --home-dir /home/ovms --create-home --uid 5000 --gid 5000 --shell /bin/bash --skel /dev/null ovms && \
     chown -R ovms:ovms /ovms
diff --git a/demos/c_api_minimal_app/capi_files/Dockerfile.ubuntu b/demos/c_api_minimal_app/capi_files/Dockerfile.ubuntu
index 261de181f1..a55ccefec4 100644
--- a/demos/c_api_minimal_app/capi_files/Dockerfile.ubuntu
+++ b/demos/c_api_minimal_app/capi_files/Dockerfile.ubuntu
@@ -22,8 +22,8 @@ SHELL ["/bin/bash", "-xo", "pipefail", "-c"]
 RUN groupadd --gid 5000 ovms && useradd --home-dir /home/ovms --create-home --uid 5000 \
              --gid 5000 --shell /bin/bash --skel /dev/null ovms
 
-COPY ovms.tar.gz /
-RUN tar -xf ovms.tar.gz
+COPY ovms.tar /
+RUN tar -xf ovms.tar
 RUN chown -R ovms:ovms /ovms
 # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #