diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 2571ec8..e80a59b 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -11,6 +11,7 @@ jobs:
     steps:
     - name: Check out code
       uses: actions/checkout@v3
-    
+    - name: Set up QEMU
+      uses: docker/setup-qemu-action@v3    
     - name: Build Docker image (manual)
       run: ./run.sh
\ No newline at end of file
diff --git a/Dockerfile b/Dockerfile
index 13f6f61..0da9c4d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 FROM --platform=$TARGETPLATFORM rust:1.75-bookworm as build
-
+ENV A=c
 RUN apt-get install -y bash
-ENV A=b
+
 # RUN cargo install cargo-binstall --version 1.6.2
 RUN curl -L --proto '=https' --tlsv1.2 -sSf https://raw.githubusercontent.com/cargo-bins/cargo-binstall/main/install-from-binstall-release.sh | bash
 # currently there is a bug in cargo-binstall that prevents it from installing