diff --git a/src/SOS/SOS.Extensions/ModuleServiceFromDebuggerServices.cs b/src/SOS/SOS.Extensions/ModuleServiceFromDebuggerServices.cs
index 39110a923a..ed88c37705 100644
--- a/src/SOS/SOS.Extensions/ModuleServiceFromDebuggerServices.cs
+++ b/src/SOS/SOS.Extensions/ModuleServiceFromDebuggerServices.cs
@@ -86,7 +86,7 @@ public ModuleFromDebuggerServices(
             {
                 _moduleService = moduleService;
                 ModuleIndex = moduleIndex;
-                FileName = imageName;
+                FileName = imageName ?? string.Empty;
                 ImageBase = imageBase;
                 ImageSize = imageSize;
                 IndexFileSize = indexTimeStamp == InvalidTimeStamp ? null : indexFileSize;