diff --git a/process_pr.py b/process_pr.py
index af48994b42f..6e18728dc05 100644
--- a/process_pr.py
+++ b/process_pr.py
@@ -145,7 +145,10 @@ def format(s, **kwds):
 ALL_CHECK_FUNCTIONS = None
 EXTRA_RELVALS_TESTS = ["threading", "gpu", "high-stats", "nano"]
 EXTRA_RELVALS_TESTS_OPTS = "_" + "|_".join(EXTRA_RELVALS_TESTS)
-EXTRA_TESTS = "|".join(EXTRA_RELVALS_TESTS) + "|hlt_p2_integration|hlt_p2_timing|profiling|none|multi-microarchs"
+EXTRA_TESTS = (
+    "|".join(EXTRA_RELVALS_TESTS)
+    + "|hlt_p2_integration|hlt_p2_timing|profiling|none|multi-microarchs"
+)
 SKIP_TESTS = "|".join(["static", "header"])
 ENABLE_TEST_PTRN = "enable(_test(s|)|)"
 JENKINS_NODES = r"[a-zA-Z0-9_|&\s()-]+"