diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 4170b0093a..7c1c2ddd04 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -19,6 +19,11 @@ jobs:
       - uses: actions/checkout@v1
       - name: Proceed with TARGET_MACHINE == ${{ matrix.mach }}
         run: echo $TARGET_MACHINE
+      - name: Install multilib for 32-bit
+        if: matrix.mach == 'i3le' || matrix.mach == 'ti3le'
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y gcc-multilib lib32ncurses5-dev libx32ncurses5-dev uuid-dev:i386 libssl-dev:i386
       - name: Build bootfiles
         run: .github/scripts/dobootfile.sh
       - name: Build Chez