diff --git a/finnow-api/source/util/csv.d b/finnow-api/source/util/csv.d
index 385d613..24adb31 100644
--- a/finnow-api/source/util/csv.d
+++ b/finnow-api/source/util/csv.d
@@ -30,7 +30,9 @@ struct CsvStreamWriter(S) if (isByteOutputStream!S) {
         import std.regex : replaceAll, regex;
         import std.string : indexOf;
         string s = value.to!string();
-        bool shouldValueBeQuoted = indexOf(s, '"') != -1 || indexOf(s, ',') != -1;
+        bool shouldValueBeQuoted = indexOf(s, '"') != -1 ||
+            indexOf(s, ',') != -1 ||
+            indexOf(s, '\n') != -1;
         s = replaceAll(value.to!string(), regex("\""), "\"\"");
         if (shouldValueBeQuoted) {
             s = "\"" ~ s ~ "\"";