diff --git a/polyglot/adapter.json b/polyglot/adapter.json
index 39484e6..405a18f 100644
--- a/polyglot/adapter.json
+++ b/polyglot/adapter.json
@@ -118,6 +118,16 @@
 					"length": 21844
 				}
 			},
+			{
+				"from": {
+					"type": "varchar",
+					"mode": "char",
+					"hasMaxLength": true
+				},
+				"to": {
+					"length": 255
+				}
+			},
 			{
 				"from": {
 					"type": "nvarchar",
diff --git a/polyglot/convertAdapter.json b/polyglot/convertAdapter.json
index b23dea5..245610e 100644
--- a/polyglot/convertAdapter.json
+++ b/polyglot/convertAdapter.json
@@ -39,12 +39,23 @@
 			{
 				"from": {
 					"childType": "char",
+					"mode": "varchar",
 					"length": 21844
 				},
 				"to": {
 					"hasMaxLength": true
 				}
 			},
+			{
+				"from": {
+					"childType": "char",
+					"mode": "char",
+					"length": 255
+				},
+				"to": {
+					"hasMaxLength": true
+				}
+			},
 			{
 				"from": {
 					"mode": "varbinary",