diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 5cd4e85a..6cdf1136 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -158,6 +158,7 @@ jobs:
         run: |
           opam exec -- cmake . -DBUILD_STATIC_LIB=ON -DBUILD_TESTS=off -DINSTALL_LIBS=off -DCMAKE_C_COMPILER=x86_64-w64-mingw32-gcc
           make -j 4
+          rm -r src
 
       - name: Cache binaryen
         if: steps.cache-binaryen.outputs.cache-hit != 'true'
@@ -170,24 +171,11 @@ jobs:
         shell: bash
         run: echo "$GITHUB_WORKSPACE/binaryen/bin" >> $GITHUB_PATH
 
-      - name: Set binaryen's path (windows)
+      - name: Copy binaryen's tools (Windows)
         if: matrix.os == 'windows-latest'
         shell: bash
         run: cp $GITHUB_WORKSPACE/binaryen/bin/wasm-{merge,opt}.exe _opam/bin
 
-      - name: Binaryen DEBUG
-        shell: bash
-        run: echo $PATH
-
-      - name: Binaryen DEBUG
-        if: matrix.os == 'windows-latest'
-        shell: bash
-        run: ls -l /cygdrive/d/a/wasm_of_ocaml/wasm_of_ocaml/binaryen/bin
-
-      - name: Binaryen DEBUG
-        shell: bash
-        run: which wasm-merge
-
       - name: Install faked binaryen-bin package
         # It's faster to use a cached version
         run: opam install --fake binaryen-bin