diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index d122e1e0a..87310899f 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -126,7 +126,7 @@ jobs:
       CI_M32: ${{ matrix.m32 }}
       CC: ${{ matrix.compiler.cc }}
       CXX: ${{ matrix.compiler.cxx }}
-      CACHE_BASE_KEY: test-${{ matrix.os }}-${{ matrix.compiler.cc }}-m32=${{ matrix.m32 }}-${ matrix.suite }}
+      CACHE_BASE_KEY: test-${{ matrix.os }}-${{ matrix.compiler.cc }}-m32=${{ matrix.m32 }}-${{ matrix.suite }}
       CCACHE_MAXSIZE: 64M # Per build matrix entry (2160M in total)
       VERILATOR_ARCHIVE: verilator-${{ github.sha }}-${{ matrix.os }}-${{ matrix.compiler.cc }}${{ matrix.m32 && '-m32' || '' }}.tar.gz
     steps: