diff --git a/pdfplumber/container.py b/pdfplumber/container.py
index 4793655..2589a4a 100644
--- a/pdfplumber/container.py
+++ b/pdfplumber/container.py
@@ -171,7 +171,11 @@ class Container(object):
         cols = CSV_COLS_REQUIRED + list(filter(serializer.attr_filter, non_req_cols))
 
         w = csv.DictWriter(
-            stream, fieldnames=cols, extrasaction="ignore", quoting=csv.QUOTE_MINIMAL
+            stream,
+            fieldnames=cols,
+            extrasaction="ignore",
+            quoting=csv.QUOTE_MINIMAL,
+            escapechar="\\",
         )
         w.writeheader()
         w.writerows(serialized)