diff --git a/plugins/preprocess/preprocess_node.cpp b/plugins/preprocess/preprocess_node.cpp
index 2a84e86..20ff609 100644
--- a/plugins/preprocess/preprocess_node.cpp
+++ b/plugins/preprocess/preprocess_node.cpp
@@ -81,7 +81,7 @@ public:
     ~ScopedRgaGate() { GlobalRgaGate().Release(); }
     ScopedRgaGate(const ScopedRgaGate&) = delete;
     ScopedRgaGate& operator=(const ScopedRgaGate&) = delete;
-}
+};
 
 void EnsureRgaInitializedOnce() {
     static std::once_flag once;