diff --git a/src/opros/wait_set.cpp b/src/opros/wait_set.cpp
index f0294d6..1bba413 100644
--- a/src/opros/wait_set.cpp
+++ b/src/opros/wait_set.cpp
@@ -102,6 +102,7 @@ wait_set::wait_set(unsigned capacity) :
 void wait_set::add_filter(waitable& w, int16_t filter, void* user_data)
 {
 	// turn off clang-format because it is not stable on this line
+
 	// clang-format off
 	struct kevent e{};
 	// clang-format on
@@ -130,6 +131,7 @@ void wait_set::add_filter(waitable& w, int16_t filter, void* user_data)
 void wait_set::remove_filter(waitable& w, int16_t filter) noexcept
 {
 	// turn off clang-format because it is not stable on this line
+
 	// clang-format off
 	struct kevent e{};
 	// clang-format on