diff --git a/renderdoc/driver/d3d11/d3d11_replay.cpp b/renderdoc/driver/d3d11/d3d11_replay.cpp
index 7cfb9e476..aa5e64864 100644
--- a/renderdoc/driver/d3d11/d3d11_replay.cpp
+++ b/renderdoc/driver/d3d11/d3d11_replay.cpp
@@ -2066,7 +2066,7 @@ ReplayCreateStatus D3D11_CreateReplayDevice(const char *logfile, IReplayDriver *
         wrappedDev->SetLogFile(logfile);
       wrappedDev->SetLogVersion(initParams.SerialiseVersion);
 
-      if(wrappedDev->GetSerialiser()->HasError())
+      if(logfile && wrappedDev->GetSerialiser()->HasError())
       {
         SAFE_RELEASE(wrappedDev);
         return eReplayCreate_FileIOFailed;
diff --git a/renderdoc/driver/d3d12/d3d12_replay.cpp b/renderdoc/driver/d3d12/d3d12_replay.cpp
index 7022f7e1b..4a97b107a 100644
--- a/renderdoc/driver/d3d12/d3d12_replay.cpp
+++ b/renderdoc/driver/d3d12/d3d12_replay.cpp
@@ -1538,7 +1538,7 @@ ReplayCreateStatus D3D12_CreateReplayDevice(const char *logfile, IReplayDriver *
     wrappedDev->SetLogFile(logfile);
   wrappedDev->SetLogVersion(initParams.SerialiseVersion);
 
-  if(wrappedDev->GetSerialiser()->HasError())
+  if(logfile && wrappedDev->GetSerialiser()->HasError())
   {
     SAFE_RELEASE(wrappedDev);
     return eReplayCreate_FileIOFailed;