diff --git a/superset/connectors/base.py b/superset/connectors/base.py
index 10c5dd66bf56e..982b3bd75898a 100644
--- a/superset/connectors/base.py
+++ b/superset/connectors/base.py
@@ -168,7 +168,10 @@ class BaseColumn(AuditMixinNullable, ImportMixin):
     def __repr__(self):
         return self.column_name
 
-    num_types = ('DOUBLE', 'FLOAT', 'INT', 'BIGINT', 'LONG', 'REAL', 'NUMERIC')
+    num_types = (
+        'DOUBLE', 'FLOAT', 'INT', 'BIGINT',
+        'LONG', 'REAL', 'NUMERIC', 'DECIMAL'
+    )
     date_types = ('DATE', 'TIME', 'DATETIME')
     str_types = ('VARCHAR', 'STRING', 'CHAR')