diff --git a/src/rpc/server.cpp b/src/rpc/server.cpp
--- a/src/rpc/server.cpp
+++ b/src/rpc/server.cpp
@@ -22,11 +22,11 @@
 #include <set>
 #include <unordered_map>
 
-static RecursiveMutex cs_rpcWarmup;
+static Mutex g_rpc_warmup_mutex;
 static std::atomic<bool> g_rpc_running{false};
-static bool fRPCInWarmup GUARDED_BY(cs_rpcWarmup) = true;
+static bool fRPCInWarmup GUARDED_BY(g_rpc_warmup_mutex) = true;
 static std::string
-    rpcWarmupStatus GUARDED_BY(cs_rpcWarmup) = "RPC server started";
+    rpcWarmupStatus GUARDED_BY(g_rpc_warmup_mutex) = "RPC server started";
 /* Timer-creating functions */
 static RPCTimerInterface *timerInterface = nullptr;
 /* Map of name to timer. */
@@ -70,7 +70,7 @@
     // is set during warmup that RPC commands may depend on.  This can be
     // safely removed once global variable usage has been eliminated.
     {
-        LOCK(cs_rpcWarmup);
+        LOCK(g_rpc_warmup_mutex);
         if (fRPCInWarmup) {
             throw JSONRPCError(RPC_IN_WARMUP, rpcWarmupStatus);
         }
@@ -379,18 +379,18 @@
 }
 
 void SetRPCWarmupStatus(const std::string &newStatus) {
-    LOCK(cs_rpcWarmup);
+    LOCK(g_rpc_warmup_mutex);
     rpcWarmupStatus = newStatus;
 }
 
 void SetRPCWarmupFinished() {
-    LOCK(cs_rpcWarmup);
+    LOCK(g_rpc_warmup_mutex);
     assert(fRPCInWarmup);
     fRPCInWarmup = false;
 }
 
 bool RPCIsInWarmup(std::string *outStatus) {
-    LOCK(cs_rpcWarmup);
+    LOCK(g_rpc_warmup_mutex);
     if (outStatus) {
         *outStatus = rpcWarmupStatus;
     }
@@ -492,7 +492,7 @@
                             const JSONRPCRequest &request) const {
     // Return immediately if in warmup
     {
-        LOCK(cs_rpcWarmup);
+        LOCK(g_rpc_warmup_mutex);
         if (fRPCInWarmup) {
             throw JSONRPCError(RPC_IN_WARMUP, rpcWarmupStatus);
         }