diff --git a/tests/test-runner/bin/test-runner.py.in b/tests/test-runner/bin/test-runner.py.in
index d2b455180a1f..bbabf247c1dc 100755
--- a/tests/test-runner/bin/test-runner.py.in
+++ b/tests/test-runner/bin/test-runner.py.in
@@ -58,10 +58,12 @@ class timespec(ctypes.Structure):
         ('tv_nsec', ctypes.c_long)
     ]
 
+
 librt = ctypes.CDLL('librt.so.1', use_errno=True)
 clock_gettime = librt.clock_gettime
 clock_gettime.argtypes = [ctypes.c_int, ctypes.POINTER(timespec)]
 
+
 def monotonic_time():
     t = timespec()
     if clock_gettime(CLOCK_MONOTONIC_RAW, ctypes.pointer(t)) != 0: