diff --git a/internal/api/ediscovery.go b/internal/api/ediscovery.go
index 68eb3e8..3b9833c 100644
--- a/internal/api/ediscovery.go
+++ b/internal/api/ediscovery.go
@@ -113,7 +113,7 @@ func (s *Server) handleExportEDiscovery(w http.ResponseWriter, r *http.Request)
 	}
 
 	// Stream ZIP response
-	safeCase := sanitizeFilename(caseName)
+	safeCase := sanitizeExportFilename(caseName)
 	zipName := fmt.Sprintf("%s-%s.zip", safeCase, time.Now().UTC().Format("20060102-150405"))
 	w.Header().Set("Content-Type", "application/zip")
 	w.Header().Set("Content-Disposition", fmt.Sprintf(`attachment; filename="%s"`, zipName))
@@ -282,8 +282,8 @@ func (s *Server) handleExportEDiscovery(w http.ResponseWriter, r *http.Request)
 	})
 }
 
-// sanitizeFilename replaces characters unsafe for filenames with underscores.
-func sanitizeFilename(s string) string {
+// sanitizeExportFilename replaces characters unsafe for filenames with underscores.
+func sanitizeExportFilename(s string) string {
 	var b strings.Builder
 	for _, r := range s {
 		switch {