diff --git a/phpBB/develop/create_schema_files.php b/phpBB/develop/create_schema_files.php
index efe8837b26..05acf7177d 100644
--- a/phpBB/develop/create_schema_files.php
+++ b/phpBB/develop/create_schema_files.php
@@ -246,6 +246,32 @@ foreach ($supported_dbms as $dbms)
 
 	$line = '';
 
+	switch ($dbms)
+	{
+		case 'mysql_40':
+		case 'mysql_41':
+		case 'firebird':
+		case 'sqlite':
+			fwrite($fp, "# DO NOT EDIT THIS FILE, IT IS GENERATED\n");
+			fwrite($fp, "#\n");
+			fwrite($fp, "# To change the contents of this file, edit\n");
+			fwrite($fp, "# phpBB/develop/create_schema_files.php and\n");
+			fwrite($fp, "# run it.\n");
+		break;
+
+		case 'mssql':
+		case 'oracle':
+		case 'postgres':
+			fwrite($fp, "/*\n");
+			fwrite($fp, " * DO NOT EDIT THIS FILE, IT IS GENERATED\n");
+			fwrite($fp, " *\n");
+			fwrite($fp, " * To change the contents of this file, edit\n");
+			fwrite($fp, " * phpBB/develop/create_schema_files.php and\n");
+			fwrite($fp, " * run it.\n");
+			fwrite($fp, " */\n\n");
+		break;
+	}
+
 	// Write Header
 	switch ($dbms)
 	{
diff --git a/phpBB/install/schemas/firebird_schema.sql b/phpBB/install/schemas/firebird_schema.sql
index 40041b13cb..852c62705e 100644
--- a/phpBB/install/schemas/firebird_schema.sql
+++ b/phpBB/install/schemas/firebird_schema.sql
@@ -1,3 +1,8 @@
+# DO NOT EDIT THIS FILE, IT IS GENERATED
+#
+# To change the contents of this file, edit
+# phpBB/develop/create_schema_files.php and
+# run it.
 #
 # $Id: $
 #
diff --git a/phpBB/install/schemas/mssql_schema.sql b/phpBB/install/schemas/mssql_schema.sql
index c4fc2d4eec..bcdb0dc236 100644
--- a/phpBB/install/schemas/mssql_schema.sql
+++ b/phpBB/install/schemas/mssql_schema.sql
@@ -1,3 +1,11 @@
+/*
+ * DO NOT EDIT THIS FILE, IT IS GENERATED
+ *
+ * To change the contents of this file, edit
+ * phpBB/develop/create_schema_files.php and
+ * run it.
+ */
+
 /*
 
  $Id: $
diff --git a/phpBB/install/schemas/mysql_40_schema.sql b/phpBB/install/schemas/mysql_40_schema.sql
index 06d32166f3..f0357afc23 100644
--- a/phpBB/install/schemas/mysql_40_schema.sql
+++ b/phpBB/install/schemas/mysql_40_schema.sql
@@ -1,3 +1,8 @@
+# DO NOT EDIT THIS FILE, IT IS GENERATED
+#
+# To change the contents of this file, edit
+# phpBB/develop/create_schema_files.php and
+# run it.
 #
 # $Id: $
 #
diff --git a/phpBB/install/schemas/mysql_41_schema.sql b/phpBB/install/schemas/mysql_41_schema.sql
index 1db2790ec7..97fe33dbdd 100644
--- a/phpBB/install/schemas/mysql_41_schema.sql
+++ b/phpBB/install/schemas/mysql_41_schema.sql
@@ -1,3 +1,8 @@
+# DO NOT EDIT THIS FILE, IT IS GENERATED
+#
+# To change the contents of this file, edit
+# phpBB/develop/create_schema_files.php and
+# run it.
 #
 # $Id: $
 #
diff --git a/phpBB/install/schemas/oracle_schema.sql b/phpBB/install/schemas/oracle_schema.sql
index 783261e365..d879da4048 100644
--- a/phpBB/install/schemas/oracle_schema.sql
+++ b/phpBB/install/schemas/oracle_schema.sql
@@ -1,3 +1,11 @@
+/*
+ * DO NOT EDIT THIS FILE, IT IS GENERATED
+ *
+ * To change the contents of this file, edit
+ * phpBB/develop/create_schema_files.php and
+ * run it.
+ */
+
 /*
 
  $Id: $
diff --git a/phpBB/install/schemas/postgres_schema.sql b/phpBB/install/schemas/postgres_schema.sql
index cf655cb1c7..f532492c2c 100644
--- a/phpBB/install/schemas/postgres_schema.sql
+++ b/phpBB/install/schemas/postgres_schema.sql
@@ -1,3 +1,11 @@
+/*
+ * DO NOT EDIT THIS FILE, IT IS GENERATED
+ *
+ * To change the contents of this file, edit
+ * phpBB/develop/create_schema_files.php and
+ * run it.
+ */
+
 /*
 
  $Id: $
diff --git a/phpBB/install/schemas/sqlite_schema.sql b/phpBB/install/schemas/sqlite_schema.sql
index dae1eb839c..5557e0a0b2 100644
--- a/phpBB/install/schemas/sqlite_schema.sql
+++ b/phpBB/install/schemas/sqlite_schema.sql
@@ -1,3 +1,8 @@
+# DO NOT EDIT THIS FILE, IT IS GENERATED
+#
+# To change the contents of this file, edit
+# phpBB/develop/create_schema_files.php and
+# run it.
 #
 # $Id: $
 #