diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 9d61e6ec8..c09dd6df9 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -88,6 +88,14 @@ jobs:
         make -j4
         WASI_SNAPSHOT=preview2 make -j4
 
+    - name: Build libc + threads
+      # Only build the thread-capable wasi-libc in the latest supported Clang
+      # version; the earliest version does not have all necessary builtins
+      # (e.g., `__builtin_wasm_memory_atomic_notify`).
+      if: matrix.clang_version != '10.0.0'
+      shell: bash
+      run: make -j4 THREAD_MODEL=posix
+
     - name: Test
       shell: bash
       # For Clang linking to work correctly, we need to place Clang's runtime
@@ -110,14 +118,6 @@ jobs:
       # which is required by our malloc implementation.
       if: matrix.os == 'ubuntu-latest' && matrix.clang_version != '10.0.0'
 
-    - name: Build libc + threads
-      # Only build the thread-capable wasi-libc in the latest supported Clang
-      # version; the earliest version does not have all necessary builtins
-      # (e.g., `__builtin_wasm_memory_atomic_notify`).
-      if: matrix.clang_version != '10.0.0'
-      shell: bash
-      run: make -j4 THREAD_MODEL=posix
-
     - uses: actions/upload-artifact@v1
       with:
         # Upload the sysroot folder. Give it a name according to the OS it was built for.