diff --git a/src/init.cpp b/src/init.cpp
index 98c089412..9a2250185 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -123,7 +123,7 @@ static const char* FEE_ESTIMATES_FILENAME="fee_estimates.dat";
 // shutdown thing.
 //
 
-volatile sig_atomic_t fRequestShutdown = false;
+std::atomic<bool> fRequestShutdown(false);
 
 void StartShutdown()
 {
diff --git a/src/util.cpp b/src/util.cpp
index 80f219301..9a9209c62 100644
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -113,7 +113,7 @@ string strMiscWarning;
 bool fLogTimestamps = DEFAULT_LOGTIMESTAMPS;
 bool fLogTimeMicros = DEFAULT_LOGTIMEMICROS;
 bool fLogIPs = DEFAULT_LOGIPS;
-volatile sig_atomic_t fReopenDebugLog = false;
+std::atomic<bool> fReopenDebugLog(false);
 CTranslationInterface translationInterface;
 
 /** Init OpenSSL library multithreading support */
diff --git a/src/util.h b/src/util.h
index c6f8af4cd..ac4b94778 100644
--- a/src/util.h
+++ b/src/util.h
@@ -18,6 +18,7 @@
 #include "tinyformat.h"
 #include "utiltime.h"
 
+#include <atomic>
 #include <exception>
 #include <map>
 #include <stdint.h>
@@ -28,8 +29,6 @@
 #include <boost/signals2/signal.hpp>
 #include <boost/thread/exceptions.hpp>
 
-#include <signal.h>
-
 static const bool DEFAULT_LOGTIMEMICROS = false;
 static const bool DEFAULT_LOGIPS        = false;
 static const bool DEFAULT_LOGTIMESTAMPS = true;
@@ -52,7 +51,7 @@ extern std::string strMiscWarning;
 extern bool fLogTimestamps;
 extern bool fLogTimeMicros;
 extern bool fLogIPs;
-extern volatile sig_atomic_t fReopenDebugLog;
+extern std::atomic<bool> fReopenDebugLog;
 extern CTranslationInterface translationInterface;
 
 extern const char * const BITCOIN_CONF_FILENAME;