diff --git a/fdbclient/BackupContainer.actor.cpp b/fdbclient/BackupContainer.actor.cpp
index f24a0d3bc3..080fd220c5 100644
--- a/fdbclient/BackupContainer.actor.cpp
+++ b/fdbclient/BackupContainer.actor.cpp
@@ -26,6 +26,7 @@
 #include "flow/UnitTest.h"
 #include "flow/Hash3.h"
 #include "fdbrpc/AsyncFileReadAhead.actor.h"
+#include "fdbrpc/simulator.h"
 #include "flow/Platform.h"
 #include "fdbclient/AsyncFileBlobStore.actor.h"
 #include "fdbclient/Status.h"
@@ -1611,7 +1612,10 @@ public:
 		if(g_network->isSimulated()) {
 			if(!fileExists(fullPath))
 				throw file_not_found();
-			std::string uniquePath = fullPath + "." + deterministicRandom()->randomUniqueID().toString() + ".lnk";
+			if (g_simulator.getCurrentProcess()->uid == UID()) {
+				TraceEvent(SevError, "BackupContainerReadFileOnUnsetProcessID");
+			}
+			std::string uniquePath = fullPath + "." + g_simulator.getCurrentProcess()->uid.toString() + ".lnk";
 			unlink(uniquePath.c_str());
 			ASSERT(symlink(basename(path).c_str(), uniquePath.c_str()) == 0);
 			fullPath = uniquePath;
diff --git a/fdbrpc/simulator.h b/fdbrpc/simulator.h
index d81e5763a1..caf6fbd2c1 100644
--- a/fdbrpc/simulator.h
+++ b/fdbrpc/simulator.h
@@ -67,13 +67,16 @@ public:
 		uint64_t fault_injection_r;
 		double fault_injection_p1, fault_injection_p2;
 
+		UID uid;
+
 		ProcessInfo(const char* name, LocalityData locality, ProcessClass startingClass, NetworkAddressList addresses,
-					INetworkConnections *net, const char* dataFolder, const char* coordinationFolder )
-			: name(name), locality(locality), startingClass(startingClass),
-			  addresses(addresses), address(addresses.address), dataFolder(dataFolder),
-			  network(net), coordinationFolder(coordinationFolder), failed(false), excluded(false), cpuTicks(0),
-			  rebooting(false), fault_injection_p1(0), fault_injection_p2(0),
-			  fault_injection_r(0), machine(0), cleared(false) {}
+		            INetworkConnections* net, const char* dataFolder, const char* coordinationFolder)
+		  : name(name), locality(locality), startingClass(startingClass), addresses(addresses),
+		    address(addresses.address), dataFolder(dataFolder), network(net), coordinationFolder(coordinationFolder),
+		    failed(false), excluded(false), cpuTicks(0), rebooting(false), fault_injection_p1(0), fault_injection_p2(0),
+		    fault_injection_r(0), machine(0), cleared(false) {
+			uid = deterministicRandom()->randomUniqueID();
+		}
 
 		Future<KillType> onShutdown() { return shutdownSignal.getFuture(); }