diff --git a/src/rpc/server.cpp b/src/rpc/server.cpp
--- a/src/rpc/server.cpp
+++ b/src/rpc/server.cpp
@@ -27,10 +27,11 @@
 #include <set>
 #include <unordered_map>
 
-static std::atomic<bool> g_rpc_running{false};
-static bool fRPCInWarmup = true;
-static std::string rpcWarmupStatus("RPC server started");
 static RecursiveMutex cs_rpcWarmup;
+static std::atomic<bool> g_rpc_running{false};
+static bool fRPCInWarmup GUARDED_BY(cs_rpcWarmup) = true;
+static std::string
+    rpcWarmupStatus GUARDED_BY(cs_rpcWarmup) = "RPC server started";
 /* Timer-creating functions */
 static RPCTimerInterface *timerInterface = nullptr;
 /* Map of name to timer. */
diff --git a/src/timedata.cpp b/src/timedata.cpp
--- a/src/timedata.cpp
+++ b/src/timedata.cpp
@@ -17,7 +17,7 @@
 #include <warnings.h>
 
 static RecursiveMutex cs_nTimeOffset;
-static int64_t nTimeOffset = 0;
+static int64_t nTimeOffset GUARDED_BY(cs_nTimeOffset) = 0;
 
 /**
  * "Never go to sea with two chronometers; take one or three."
diff --git a/src/warnings.cpp b/src/warnings.cpp
--- a/src/warnings.cpp
+++ b/src/warnings.cpp
@@ -11,9 +11,9 @@
 #include <util/translation.h>
 
 RecursiveMutex cs_warnings;
-std::string strMiscWarning;
-bool fLargeWorkForkFound = false;
-bool fLargeWorkInvalidChainFound = false;
+std::string strMiscWarning GUARDED_BY(cs_warnings);
+bool fLargeWorkForkFound GUARDED_BY(cs_warnings) = false;
+bool fLargeWorkInvalidChainFound GUARDED_BY(cs_warnings) = false;
 
 void SetMiscWarning(const std::string &strWarning) {
     LOCK(cs_warnings);