diff --git a/frappe/core/doctype/doctype/doctype.py b/frappe/core/doctype/doctype/doctype.py
index 7d619ac8b0..b3842a0a77 100644
--- a/frappe/core/doctype/doctype/doctype.py
+++ b/frappe/core/doctype/doctype/doctype.py
@@ -273,7 +273,7 @@ def validate_fields(meta):
 			frappe.throw(_("Precision should be between 1 and 6"))
 
 	def check_unique_and_text(d):
-		if d.unique and d.fieldtype in ("Text", "Long Text", "Small Text", "Code", "Text Editor"):
+		if getattr(d, "unique", False) and d.fieldtype in ("Text", "Long Text", "Small Text", "Code", "Text Editor"):
 			frappe.throw(_("Fieldtype {0} for {1} cannot be unique").format(d.fieldtype, d.label))
 
 		if d.search_index and d.fieldtype in ("Text", "Long Text", "Small Text", "Code", "Text Editor"):
diff --git a/frappe/model/db_schema.py b/frappe/model/db_schema.py
index 3cf09fb7e3..3931c38cd1 100644
--- a/frappe/model/db_schema.py
+++ b/frappe/model/db_schema.py
@@ -259,7 +259,7 @@ class DbColumn:
 			and not self.default.startswith(":") and column_def not in ('text', 'longtext'):
 			column_def += ' default "' + self.default.replace('"', '\"') + '"'
 
-		if self.unique and column_def not in ('text', 'longtext'):
+		if self.unique and (column_def not in ('text', 'longtext')):
 			column_def += ' unique'
 
 		return column_def