diff --git a/install/sql/incremental/upd_dev_collection.sql b/install/sql/incremental/upd_dev_collection.sql
index 793bd593bc046a714a11b517dc8b997f8cbdc80b..0c91f1a724b8298da674210346cf8d6430532ac6 100644
--- a/install/sql/incremental/upd_dev_collection.sql
+++ b/install/sql/incremental/upd_dev_collection.sql
@@ -16,4 +16,5 @@ CHANGE `warnbannedrecip` `warnbannedrecip` ENUM('N','Y') CHARACTER SET utf8 COLL
 CHANGE `warnbadhrecip` `warnbadhrecip` ENUM('N','Y') CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT 'N';
 ALTER TABLE `dns_rr` CHANGE `data` `data` TEXT NOT NULL;
 ALTER TABLE `web_database` CHANGE `database_quota` `database_quota` INT(11) NULL DEFAULT NULL;
-ALTER TABLE `web_domain` ADD `log_retention` INT NOT NULL DEFAULT '30' ;
\ No newline at end of file
+ALTER TABLE `web_domain` ADD `log_retention` INT NOT NULL DEFAULT '30' ;
+ALTER TABLE spamfilter_policy CHANGE spam_tag_level spam_tag_level DECIMAL(5,2) NULL DEFAULT NULL, CHANGE spam_tag2_level spam_tag2_level DECIMAL(5,2) NULL DEFAULT NULL, CHANGE spam_kill_level spam_kill_level DECIMAL(5,2) NULL DEFAULT NULL, CHANGE spam_dsn_cutoff_level spam_dsn_cutoff_level DECIMAL(5,2) NULL DEFAULT NULL, CHANGE spam_quarantine_cutoff_level spam_quarantine_cutoff_level DECIMAL(5,2) NULL DEFAULT NULL;
\ No newline at end of file
diff --git a/install/sql/ispconfig3.sql b/install/sql/ispconfig3.sql
index 3e9642d6c0dc14fac391c17992b0e3668ab31099..43cbc367bd5c6edb4f655ae4f21937da33d688ae 100644
--- a/install/sql/ispconfig3.sql
+++ b/install/sql/ispconfig3.sql
@@ -1487,11 +1487,11 @@ CREATE TABLE `spamfilter_policy` (
   `bad_header_quarantine_to` varchar(255) default NULL,
   `clean_quarantine_to` varchar(255) default NULL,
   `other_quarantine_to` varchar(255) default NULL,
-  `spam_tag_level` float default NULL,
-  `spam_tag2_level` float default NULL,
-  `spam_kill_level` float default NULL,
-  `spam_dsn_cutoff_level` float default NULL,
-  `spam_quarantine_cutoff_level` float default NULL,
+  `spam_tag_level` DECIMAL(5,2) default NULL,
+  `spam_tag2_level` DECIMAL(5,2) default NULL,
+  `spam_kill_level` DECIMAL(5,2) default NULL,
+  `spam_dsn_cutoff_level` DECIMAL(5,2) default NULL,
+  `spam_quarantine_cutoff_level` DECIMAL(5,2) default NULL,
   `addr_extension_virus` varchar(64) default NULL,
   `addr_extension_spam` varchar(64) default NULL,
   `addr_extension_banned` varchar(64) default NULL,