diff --git a/Sources/SQLite/SQL/SQLiteAlterTableBuilder.swift b/Sources/SQLite/SQL/SQLiteAlterTableBuilder.swift
index f5d0239..f294542 100644
--- a/Sources/SQLite/SQL/SQLiteAlterTableBuilder.swift
+++ b/Sources/SQLite/SQL/SQLiteAlterTableBuilder.swift
@@ -1,4 +1,4 @@
-extension SQLAlterTableBuilder where Connection.Query.AlterTable == SQLiteAlterTable {
+extension SQLAlterTableBuilder where Connectable.Connection.Query.AlterTable == SQLiteAlterTable {
     /// Renames the table.
     ///
     ///     conn.alter(table: Bar.self).rename(to: "foo").run()
diff --git a/Sources/SQLite/SQL/SQLiteCreateTable.swift b/Sources/SQLite/SQL/SQLiteCreateTable.swift
index 99a5cda..d8a01df 100644
--- a/Sources/SQLite/SQL/SQLiteCreateTable.swift
+++ b/Sources/SQLite/SQL/SQLiteCreateTable.swift
@@ -1,4 +1,4 @@
-extension SQLCreateTableBuilder where Connection.Query.CreateTable == SQLiteCreateTable {
+extension SQLCreateTableBuilder where Connectable.Connection.Query.CreateTable == SQLiteCreateTable {
     /// By default, every row in SQLite has a special column, usually called the "rowid", that uniquely identifies that row within
     /// the table. However if the phrase "WITHOUT ROWID" is added to the end of a CREATE TABLE statement, then the special "rowid"
     /// column is omitted. There are sometimes space and performance advantages to omitting the rowid.
diff --git a/Sources/SQLite/SQL/SQLiteDropIndex.swift b/Sources/SQLite/SQL/SQLiteDropIndex.swift
index a69f78e..3ef791e 100644
--- a/Sources/SQLite/SQL/SQLiteDropIndex.swift
+++ b/Sources/SQLite/SQL/SQLiteDropIndex.swift
@@ -13,14 +13,14 @@ public struct SQLiteDropIndex: SQLDropIndex {
 }
 
 /// SQLite specific drop index builder.
-public final class SQLiteDropIndexBuilder<Connection>: SQLQueryBuilder
-    where Connection: SQLConnection, Connection.Query == SQLiteQuery
+public final class SQLiteDropIndexBuilder<Connectable>: SQLQueryBuilder
+    where Connectable: SQLConnectable, Connectable.Connection.Query == SQLiteQuery
 {
     /// `AlterTable` query being built.
     public var dropIndex: SQLiteDropIndex
     
     /// See `SQLQueryBuilder`.
-    public var connection: Connection
+    public var connectable: Connectable
     
     /// See `SQLQueryBuilder`.
     public var query: SQLiteQuery {
@@ -28,14 +28,14 @@ public final class SQLiteDropIndexBuilder<Connection>: SQLQueryBuilder
     }
     
     /// Creates a new `SQLCreateIndexBuilder`.
-    public init(_ dropIndex: SQLiteDropIndex, on connection: Connection) {
+    public init(_ dropIndex: SQLiteDropIndex, on connectable: Connectable) {
         self.dropIndex = dropIndex
-        self.connection = connection
+        self.connectable = connectable
     }
 }
 
 
-extension SQLConnection where Query == SQLiteQuery {
+extension SQLConnectable where Connection.Query == SQLiteQuery {
     /// Drops an index from a SQLite database.
     public func drop(index identifier: SQLiteIdentifier) -> SQLiteDropIndexBuilder<Self> {
         return .init(SQLiteDropIndex(identifier: identifier), on: self)