diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 1d3933437f..270d6d44da 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -331,7 +331,7 @@ jobs:
       - uses: actions/checkout@dc323e67f16fb5f7663d20ff7941f27f5809e9b6
       - name: build zombie-tester
         working-directory: ./zombienet/docker
-        run: make tester
+        run: make tester BRANCH_NAME=${{ github.head_ref }}
       - name: Run test
         working-directory: ./zombienet/docker
         run: make ${{ matrix.options.test }}
diff --git a/.github/workflows/zombie-tests.yaml b/.github/workflows/zombie-tests.yaml
index 243cafdcd1..a347dfa206 100644
--- a/.github/workflows/zombie-tests.yaml
+++ b/.github/workflows/zombie-tests.yaml
@@ -48,7 +48,7 @@ jobs:
       - uses: actions/checkout@dc323e67f16fb5f7663d20ff7941f27f5809e9b6
       - name: build zombie-tester
         working-directory: ./zombienet/docker
-        run: make tester
+        run: make tester BRANCH_NAME=${{ github.head_ref }}
       - name: Run test
         working-directory: ./zombienet/docker
         run: make ${{ matrix.options.test }}
diff --git a/zombienet/docker/Makefile b/zombienet/docker/Makefile
index d21f710ee8..457c2748bc 100644
--- a/zombienet/docker/Makefile
+++ b/zombienet/docker/Makefile
@@ -35,10 +35,9 @@ tester:
 	python3 version.py https://github.com/paritytech/polkadot-sdk && \
 	if [ -f polkadot-sdk-versions.txt ]; then \
 		POLKADOT_SDK_RELEASE=$$(grep 'polkadot_format_version:' polkadot-sdk-versions.txt | cut -d ' ' -f 2); \
-		BRANCH_NAME="$(git rev-parse --abbrev-ref HEAD)" \
 		DOCKER_BUILDKIT=0 docker build --platform linux/amd64 --no-cache -t qdrvm/zombie-tester:latest -f tester.Dockerfile \
 		--build-arg POLKADOT_SDK_RELEASE=$$POLKADOT_SDK_RELEASE \
-		--build-arg BRANCH_NAME=$$BRANCH_NAME . ; \
+		--build-arg BRANCH_NAME=$(BRANCH_NAME) . ; \
 	else \
 		echo "One or more files are missing."; \
 	fi
diff --git a/zombienet/docker/tester.Dockerfile b/zombienet/docker/tester.Dockerfile
index 1eff04a8e6..3af5d47c14 100644
--- a/zombienet/docker/tester.Dockerfile
+++ b/zombienet/docker/tester.Dockerfile
@@ -5,7 +5,8 @@ FROM qdrvm/kagome:latest as kagome
 
 FROM qdrvm/zombie-builder:$POLKADOT_SDK_RELEASE AS tester
 COPY --from=kagome /usr/local/bin/kagome /home/nonroot/bin
-RUN git clone https://github.com/qdrvm/kagome.git -b $BRANCH_NAME
+RUN echo ${BRANCH_NAME}
+RUN git clone https://github.com/qdrvm/kagome.git -b ${BRANCH_NAME}
 
 # TODO(kamilsa): #2099 Remove this once we have a proper way to precompile
 RUN mkdir /tmp/kagome/