diff --git a/vlib/toml/tests/burntsushi.toml-test_test.v b/vlib/toml/tests/burntsushi.toml-test_test.v
index 54b3e22f4f..7dd6be207a 100644
--- a/vlib/toml/tests/burntsushi.toml-test_test.v
+++ b/vlib/toml/tests/burntsushi.toml-test_test.v
@@ -204,7 +204,11 @@ fn to_burntsushi(value ast.Value) string {
 		ast.DateTime {
 			// Normalization for json
 			json_text := json2.Any(value.text).json_str().to_upper().replace(' ', 'T')
-			typ := if json_text.ends_with('Z') || json_text.all_after('T').contains('-')
+
+			// NB: Since encoding strings in JSON now automatically includes quotes,
+			// I added a somewhat a workaround by adding an ending quote in order to
+			// recognize properly the date time type. - Ned
+			typ := if json_text.ends_with('Z"') || json_text.all_after('T').contains('-')
 				|| json_text.all_after('T').contains('+') {
 				'datetime'
 			} else {