diff --git a/src/cardreader.cpp b/src/cardreader.cpp
index 6c24dc5..6b10229 100644
--- a/src/cardreader.cpp
+++ b/src/cardreader.cpp
@@ -255,7 +255,7 @@ void* CardReader::HandlerFunction(void* arg) {
     /* Unlock the mutex */
     pthread_mutex_unlock(&reader->m_mutex);
 
-    SCARD_READERSTATE card_reader_state = { 0 };
+    SCARD_READERSTATE card_reader_state = SCARD_READERSTATE();
     card_reader_state.szReader = reader->m_name.c_str();
     card_reader_state.dwCurrentState = SCARD_STATE_UNAWARE;
 
diff --git a/src/pcsclite.cpp b/src/pcsclite.cpp
index fad4480..960280f 100644
--- a/src/pcsclite.cpp
+++ b/src/pcsclite.cpp
@@ -123,7 +123,7 @@ void* PCSCLite::HandlerFunction(void* arg) {
     PCSCLite* pcsclite = async_baton->pcsclite;
     async_baton->async_result = new AsyncResult();
 
-    SCARD_READERSTATE card_reader_state = { 0 };
+    SCARD_READERSTATE card_reader_state = SCARD_READERSTATE();
     card_reader_state.szReader = "\\\\?PnP?\\Notification";
     card_reader_state.dwCurrentState = SCARD_STATE_UNAWARE;