diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 46bc1cc4b..f73e8178d 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -273,7 +273,10 @@ jobs:
       # Don't use -bench=. -benchtime=1x.
       # Somewhere in the layers (powershell?)
       # the equals signs cause great confusion.
-      run: ./tool/go test ./... -bench . -benchtime 1x -run "^$"
+      # Don't use -run "^$" either; the ^ is cmd.exe's escape
+      # character, so go.cmd's cmd.exe layer eats it, turning
+      # -run "^$" into -run "$" which matches all test names.
+      run: ./tool/go test ./... -bench . -benchtime 1x -run XXXXNothingXXXX
       env:
         NOPWSHDEBUG: "true" # to quiet tool/gocross/gocross-wrapper.ps1 in CI