diff --git a/src/common/util/instance_logger.h b/src/common/util/instance_logger.h
index 97a3e1c6..29f88d4c 100644
--- a/src/common/util/instance_logger.h
+++ b/src/common/util/instance_logger.h
@@ -85,7 +85,7 @@ template <typename CATEGORY> class InstanceLogger {
     void set_logger(LoggerDelegate& logger) { this->logger = &logger; }
 
 private:
-    LoggerDelegate* logger;
+    LoggerDelegate* logger{nullptr};
 };
 } // namespace util
 
@@ -93,4 +93,4 @@ template <typename CATEGORY> class InstanceLogger {
     if(LEVEL <= this->LOGGER.get_log_level()) {                                                                                            \
         this->LOGGER.log(LEVEL, MSG, __LINE__, __FILE__);                                                                                  \
     }
-#endif // _ISS_LOGGER_H_
\ No newline at end of file
+#endif // _ISS_LOGGER_H_
diff --git a/src/sysc/tlm/scc/quantum_keeper_mt.h b/src/sysc/tlm/scc/quantum_keeper_mt.h
index fce59cee..1a28be3d 100644
--- a/src/sysc/tlm/scc/quantum_keeper_mt.h
+++ b/src/sysc/tlm/scc/quantum_keeper_mt.h
@@ -6,7 +6,7 @@
 #include <sysc/kernel/sc_simcontext.h>
 
 #if SC_VERSION_MAJOR < 3
-#error "Multithreaded quantum keeper is only supported with SystemC 3.0 and newer"
+#warning "Multithreaded quantum keeper is only supported with SystemC 3.0 and newer"
 #else
 #define DEBUG_MT_SCHEDULING