diff --git a/django/db/backends/oracle/introspection.py b/django/db/backends/oracle/introspection.py
index f1fe10b5e8..8004aab6b9 100644
--- a/django/db/backends/oracle/introspection.py
+++ b/django/db/backends/oracle/introspection.py
@@ -93,6 +93,6 @@ DATA_TYPES_REVERSE = {
     cx_Oracle.FIXED_CHAR: 'CharField',
     cx_Oracle.NCLOB: 'TextField',
     cx_Oracle.NUMBER: 'FloatField',
-    cx_Oracle.STRING: 'TextField',
+    cx_Oracle.STRING: 'CharField',
     cx_Oracle.TIMESTAMP: 'DateTimeField',
 }