diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 32f22c38c2..4d72c8427c 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -435,7 +435,7 @@ jobs:
             target_cpu: mipsel
             extra: 'mips_arch_variant="r1" mips_float_abi="soft" use_lld=false use_gold=false use_thin_lto=false chrome_pgo_phase=0'
     env:
-      EXTRA_FLAGS: target_cpu="${{ matrix.target_cpu }}" target_os="openwrt" use_allocator="none" use_allocator_shim=false ${{ matrix.extra }}
+      EXTRA_FLAGS: target_cpu="${{ matrix.target_cpu }}" target_os="openwrt" use_allocator="none" use_allocator_shim=false use_partition_alloc=false ${{ matrix.extra }}
       OPENWRT_FLAGS: arch=${{ matrix.arch }} release=21.02.0 gcc_ver=8.4.0 ${{ matrix.openwrt }}
       BUNDLE: naiveproxy-${{ github.event.release.tag_name }}-${{ github.job }}-${{ matrix.arch }}
     steps: