diff --git a/lib/matplotlib/backends/backend_pgf.py b/lib/matplotlib/backends/backend_pgf.py
index ccf4b800a614..46fd66357506 100644
--- a/lib/matplotlib/backends/backend_pgf.py
+++ b/lib/matplotlib/backends/backend_pgf.py
@@ -257,7 +257,8 @@ def _setup_latex_process(self, *, expect_reply=True):
# Open LaTeX process for real work; register it for deletion. On
# Windows, we must ensure that the subprocess has quit before being
# able to delete the tmpdir in which it runs; in order to do so, we
- # must first `kill()` it, and then `communicate()` with it.
+ # must first `kill()` it, and then `communicate()` with or `wait()` on
+ # it.
try:
self.latex = subprocess.Popen(
[mpl.rcParams["pgf.texsystem"], "-halt-on-error"],
@@ -274,7 +275,10 @@ def _setup_latex_process(self, *, expect_reply=True):
def finalize_latex(latex):
latex.kill()
- latex.communicate()
+ try:
+ latex.communicate()
+ except RuntimeError:
+ latex.wait()
self._finalize_latex = weakref.finalize(
self, finalize_latex, self.latex)
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