diff --git a/phpBB/install/schemas/firebird_schema.sql b/phpBB/install/schemas/firebird_schema.sql
index 091f1cb4a1..237a2ce63d 100644
--- a/phpBB/install/schemas/firebird_schema.sql
+++ b/phpBB/install/schemas/firebird_schema.sql
@@ -1078,7 +1078,7 @@ CREATE TABLE phpbb_styles_template (
 	bbcode_bitfield VARCHAR(255) CHARACTER SET NONE DEFAULT 'kNg=' NOT NULL,
 	template_storedb INTEGER DEFAULT 0 NOT NULL,
 	template_inherits_id INTEGER DEFAULT 0 NOT NULL,
-	template_inherit_path VARCHAR(255) CHARACTER SET NONE NOT NULL
+	template_inherit_path VARCHAR(255) CHARACTER SET NONE DEFAULT '' NOT NULL
 );;
 
 ALTER TABLE phpbb_styles_template ADD PRIMARY KEY (template_id);;
diff --git a/phpBB/install/schemas/mssql_schema.sql b/phpBB/install/schemas/mssql_schema.sql
index 4281871115..48aa594c37 100644
--- a/phpBB/install/schemas/mssql_schema.sql
+++ b/phpBB/install/schemas/mssql_schema.sql
@@ -1297,7 +1297,7 @@ CREATE TABLE [phpbb_styles_template] (
 	[bbcode_bitfield] [varchar] (255) DEFAULT ('kNg=') NOT NULL ,
 	[template_storedb] [int] DEFAULT (0) NOT NULL ,
 	[template_inherits_id] [int] DEFAULT (0) NOT NULL ,
-	[template_inherit_path] [varchar] (255) NOT NULL 
+	[template_inherit_path] [varchar] (255) DEFAULT ('') NOT NULL 
 ) ON [PRIMARY]
 GO
 
diff --git a/phpBB/install/schemas/mysql_40_schema.sql b/phpBB/install/schemas/mysql_40_schema.sql
index b66560f045..ec65dc938b 100644
--- a/phpBB/install/schemas/mysql_40_schema.sql
+++ b/phpBB/install/schemas/mysql_40_schema.sql
@@ -740,7 +740,7 @@ CREATE TABLE phpbb_styles_template (
 	bbcode_bitfield varbinary(255) DEFAULT 'kNg=' NOT NULL,
 	template_storedb tinyint(1) UNSIGNED DEFAULT '0' NOT NULL,
 	template_inherits_id int(4) UNSIGNED DEFAULT '0' NOT NULL,
-	template_inherit_path varbinary(255) NOT NULL,
+	template_inherit_path varbinary(255) DEFAULT '' NOT NULL,
 	PRIMARY KEY (template_id),
 	UNIQUE tmplte_nm (template_name(255))
 );
diff --git a/phpBB/install/schemas/mysql_41_schema.sql b/phpBB/install/schemas/mysql_41_schema.sql
index 240a77f0cd..4514700758 100644
--- a/phpBB/install/schemas/mysql_41_schema.sql
+++ b/phpBB/install/schemas/mysql_41_schema.sql
@@ -740,7 +740,7 @@ CREATE TABLE phpbb_styles_template (
 	bbcode_bitfield varchar(255) DEFAULT 'kNg=' NOT NULL,
 	template_storedb tinyint(1) UNSIGNED DEFAULT '0' NOT NULL,
 	template_inherits_id int(4) UNSIGNED DEFAULT '0' NOT NULL,
-	template_inherit_path varchar(255) NOT NULL,
+	template_inherit_path varchar(255) DEFAULT '' NOT NULL,
 	PRIMARY KEY (template_id),
 	UNIQUE tmplte_nm (template_name)
 ) CHARACTER SET `utf8` COLLATE `utf8_bin`;
diff --git a/phpBB/install/schemas/oracle_schema.sql b/phpBB/install/schemas/oracle_schema.sql
index 6ac1c46f42..d1b3b903d4 100644
--- a/phpBB/install/schemas/oracle_schema.sql
+++ b/phpBB/install/schemas/oracle_schema.sql
@@ -1432,7 +1432,7 @@ CREATE TABLE phpbb_styles_template (
 	bbcode_bitfield varchar2(255) DEFAULT 'kNg=' NOT NULL,
 	template_storedb number(1) DEFAULT '0' NOT NULL,
 	template_inherits_id number(4) DEFAULT '0' NOT NULL,
-	template_inherit_path varchar2(255) NOT NULL,
+	template_inherit_path varchar2(255) DEFAULT '' ,
 	CONSTRAINT pk_phpbb_styles_template PRIMARY KEY (template_id),
 	CONSTRAINT u_phpbb_tmplte_nm UNIQUE (template_name)
 )
diff --git a/phpBB/install/schemas/postgres_schema.sql b/phpBB/install/schemas/postgres_schema.sql
index c457bf5cab..62206bebdb 100644
--- a/phpBB/install/schemas/postgres_schema.sql
+++ b/phpBB/install/schemas/postgres_schema.sql
@@ -973,7 +973,7 @@ CREATE TABLE phpbb_styles_template (
 	bbcode_bitfield varchar(255) DEFAULT 'kNg=' NOT NULL,
 	template_storedb INT2 DEFAULT '0' NOT NULL CHECK (template_storedb >= 0),
 	template_inherits_id INT4 DEFAULT '0' NOT NULL CHECK (template_inherits_id >= 0),
-	template_inherit_path varchar(255) NOT NULL,
+	template_inherit_path varchar(255) DEFAULT '' NOT NULL,
 	PRIMARY KEY (template_id)
 );
 
diff --git a/phpBB/install/schemas/sqlite_schema.sql b/phpBB/install/schemas/sqlite_schema.sql
index d04d166303..4de0a65fa2 100644
--- a/phpBB/install/schemas/sqlite_schema.sql
+++ b/phpBB/install/schemas/sqlite_schema.sql
@@ -715,7 +715,7 @@ CREATE TABLE phpbb_styles_template (
 	bbcode_bitfield varchar(255) NOT NULL DEFAULT 'kNg=',
 	template_storedb INTEGER UNSIGNED NOT NULL DEFAULT '0',
 	template_inherits_id INTEGER UNSIGNED NOT NULL DEFAULT '0',
-	template_inherit_path varchar(255) NOT NULL 
+	template_inherit_path varchar(255) NOT NULL DEFAULT ''
 );
 
 CREATE UNIQUE INDEX phpbb_styles_template_tmplte_nm ON phpbb_styles_template (template_name);