diff --git a/src/common/Cryptography/OpenSSLCrypto.h b/src/common/Cryptography/OpenSSLCrypto.h
index 5b86cfd5d..b181f3418 100644
--- a/src/common/Cryptography/OpenSSLCrypto.h
+++ b/src/common/Cryptography/OpenSSLCrypto.h
@@ -15,8 +15,8 @@
  * with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef OPENSSL_CRYPTO_H
-#define OPENSSL_CRYPTO_H
+#ifndef OPENSSL_CRYPTO_H_
+#define OPENSSL_CRYPTO_H_
 
 #include "Define.h"
 #include <openssl/opensslv.h>
diff --git a/src/common/Threading/PCQueue.h b/src/common/Threading/PCQueue.h
index 19b164fdc..648405365 100644
--- a/src/common/Threading/PCQueue.h
+++ b/src/common/Threading/PCQueue.h
@@ -34,7 +34,7 @@ private:
     std::atomic<bool> _shutdown;
 
 public:
-    ProducerConsumerQueue<T>() : _shutdown(false) { }
+    ProducerConsumerQueue() : _shutdown(false) { }
 
     void Push(const T& value)
     {