diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 4bf2ff5c4a..0e593d043b 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -344,7 +344,7 @@ jobs:
           install: >-
             mingw-w64-${{ matrix.env }}-cc
             mingw-w64-${{ matrix.env }}-${{ matrix.build }} ${{ matrix.build == 'autotools' && 'make' || '' }}
-            mingw-w64-${{ matrix.env }}-diffutils
+            ${{ matrix.sys != 'mingw32' && format('mingw-w64-{0}-diffutils', matrix.env) || '' }}
             mingw-w64-${{ matrix.env }}-libpsl
             ${{ matrix.install }}