diff --git a/src/webui.c b/src/webui.c
index 8c64843c2..2be6ca957 100644
--- a/src/webui.c
+++ b/src/webui.c
@@ -11728,6 +11728,7 @@ BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpReserved) {
         // Window class
         const char wvClass[] = "WebViewWindow";
         WNDCLASSA wc;
+        ZeroMemory(&wc, sizeof(WNDCLASSA));
         wc.lpfnWndProc = WndProc;
         wc.hInstance = GetModuleHandle(NULL);
         wc.lpszClassName = wvClass;