diff --git a/csharp/extractor/Semmle.Extraction.CSharp/Entities/File.cs b/csharp/extractor/Semmle.Extraction.CSharp/Entities/File.cs
index 9a2d0475c585..bd2a7fbd181f 100644
--- a/csharp/extractor/Semmle.Extraction.CSharp/Entities/File.cs
+++ b/csharp/extractor/Semmle.Extraction.CSharp/Entities/File.cs
@@ -64,7 +64,7 @@ public override void Populate(TextWriter trapFile)
                 }
                 catch (Exception exc)
                 {
-                    Context.ExtractionError($"Couldn't read file: {originalPath}. {exc.Message}", null, null, exc.StackTrace);
+                    Context.ExtractionError($"Couldn't read file: {originalPath}. {exc.Message}", null, null, exc.StackTrace, Semmle.Util.Logging.Severity.Warning);
                 }
             }