diff --git a/renderdoc/driver/d3d11/d3d11_replay.cpp b/renderdoc/driver/d3d11/d3d11_replay.cpp
index ce634effd..b1230f083 100644
--- a/renderdoc/driver/d3d11/d3d11_replay.cpp
+++ b/renderdoc/driver/d3d11/d3d11_replay.cpp
@@ -1942,7 +1942,7 @@ void D3D11Replay::GetBufferData(ResourceId buff, uint64_t offset, uint64_t lengt
     memcpy(retData.data(), &count, retData.size());
 
     // remove offset bytes, up to 4
-    retData.erase(0, RDCMIN(4ULL, offset));
+    retData.erase(0, (size_t)RDCMIN(4ULL, offset));
     return;
   }