diff --git a/src/threading.cpp b/src/threading.cpp
index 731394126..725b58c89 100644
--- a/src/threading.cpp
+++ b/src/threading.cpp
@@ -135,7 +135,7 @@ struct MutexGuard {
 	explicit MutexGuard(RecursiveMutex *rm) noexcept : rm{rm} {
 		mutex_lock(this->rm);
 	}
-	explicit MutexGuard(RwMutex *rm) noexcept : rwm{rwm} {
+	explicit MutexGuard(RwMutex *rwm) noexcept : rwm{rwm} {
 		rw_mutex_lock(this->rwm);
 	}
 	explicit MutexGuard(BlockingMutex &bm) noexcept : bm{&bm} {