diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 828a04c29e..28645b2303 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -514,7 +514,6 @@ jobs:
             fi
             if [[ "${TFLAGS}" = *'-t'* ]]; then
               TFLAGS+=' !2300'  # Leaks memory and file handle via tool_doswin.c / win32_stdin_read_thread()
-              export CURL_TEST_NO_TASKKILL=1  # experiment to see if it reduces flaky failures
             fi
             if [[ "${MATRIX_INSTALL} " = *'-libssh '* && \
                   "${MATRIX_ENV}" = *'x86_64'* ]]; then