diff --git a/pkg/sql2pgroll/alter_table_test.go b/pkg/sql2pgroll/alter_table_test.go
index f74eace5..96f90348 100644
--- a/pkg/sql2pgroll/alter_table_test.go
+++ b/pkg/sql2pgroll/alter_table_test.go
@@ -148,7 +148,7 @@ func TestConvertAlterTableStatements(t *testing.T) {
 		},
 		{
 			sql:        "ALTER TABLE foo ADD COLUMN bar int NOT NULL",
-			expectedOp: expect.AddColumnOp1,
+			expectedOp: expect.AddColumnOp8,
 		},
 		{
 			sql:        "ALTER TABLE schema.foo ADD COLUMN bar int",
diff --git a/pkg/sql2pgroll/expect/add_column.go b/pkg/sql2pgroll/expect/add_column.go
index 76de2583..2df82c28 100644
--- a/pkg/sql2pgroll/expect/add_column.go
+++ b/pkg/sql2pgroll/expect/add_column.go
@@ -11,8 +11,9 @@ var AddColumnOp1 = &migrations.OpAddColumn{
 	Table: "foo",
 	Up:    sql2pgroll.PlaceHolderSQL,
 	Column: migrations.Column{
-		Name: "bar",
-		Type: "int",
+		Name:     "bar",
+		Type:     "int",
+		Nullable: true,
 	},
 }
 
@@ -20,8 +21,9 @@ var AddColumnOp2 = &migrations.OpAddColumn{
 	Table: "schema.foo",
 	Up:    sql2pgroll.PlaceHolderSQL,
 	Column: migrations.Column{
-		Name: "bar",
-		Type: "int",
+		Name:     "bar",
+		Type:     "int",
+		Nullable: true,
 	},
 }
 
@@ -30,9 +32,10 @@ func AddColumnOp1WithDefault(def *string) *migrations.OpAddColumn {
 		Table: "foo",
 		Up:    sql2pgroll.PlaceHolderSQL,
 		Column: migrations.Column{
-			Name:    "bar",
-			Type:    "int",
-			Default: def,
+			Name:     "bar",
+			Type:     "int",
+			Default:  def,
+			Nullable: true,
 		},
 	}
 }
@@ -51,9 +54,10 @@ var AddColumnOp4 = &migrations.OpAddColumn{
 	Table: "foo",
 	Up:    sql2pgroll.PlaceHolderSQL,
 	Column: migrations.Column{
-		Name:   "bar",
-		Type:   "int",
-		Unique: true,
+		Name:     "bar",
+		Type:     "int",
+		Unique:   true,
+		Nullable: true,
 	},
 }
 
@@ -71,8 +75,9 @@ var AddColumnOp6 = &migrations.OpAddColumn{
 	Table: "foo",
 	Up:    sql2pgroll.PlaceHolderSQL,
 	Column: migrations.Column{
-		Name: "bar",
-		Type: "int",
+		Name:     "bar",
+		Type:     "int",
+		Nullable: true,
 		Check: &migrations.CheckConstraint{
 			Constraint: "bar > 0",
 			Name:       "",
@@ -84,8 +89,9 @@ var AddColumnOp7 = &migrations.OpAddColumn{
 	Table: "foo",
 	Up:    sql2pgroll.PlaceHolderSQL,
 	Column: migrations.Column{
-		Name: "bar",
-		Type: "int",
+		Name:     "bar",
+		Type:     "int",
+		Nullable: true,
 		Check: &migrations.CheckConstraint{
 			Constraint: "bar > 0",
 			Name:       "check_bar",
@@ -93,13 +99,24 @@ var AddColumnOp7 = &migrations.OpAddColumn{
 	},
 }
 
+var AddColumnOp8 = &migrations.OpAddColumn{
+	Table: "foo",
+	Up:    sql2pgroll.PlaceHolderSQL,
+	Column: migrations.Column{
+		Name:     "bar",
+		Type:     "int",
+		Nullable: false,
+	},
+}
+
 func AddColumnOp8WithOnDeleteAction(action migrations.ForeignKeyReferenceOnDelete) *migrations.OpAddColumn {
 	return &migrations.OpAddColumn{
 		Table: "foo",
 		Up:    sql2pgroll.PlaceHolderSQL,
 		Column: migrations.Column{
-			Name: "bar",
-			Type: "int",
+			Name:     "bar",
+			Type:     "int",
+			Nullable: true,
 			References: &migrations.ForeignKeyReference{
 				Column:   "bar",
 				Name:     "fk_baz",