diff --git a/dbrepo-ui/api/query.mapper.js b/dbrepo-ui/api/query.mapper.js
index 5f4ba5155228da00bc642d9c7ce6817eceab777e..7aa33d1038c2dadb7f6862383447531fda35dcb9 100644
--- a/dbrepo-ui/api/query.mapper.js
+++ b/dbrepo-ui/api/query.mapper.js
@@ -23,8 +23,8 @@ class QueryMapper {
       { value: 'mediumint', text: 'MEDIUMINT(size)', defaultSize: 10 },
       { value: 'bigint', text: 'BIGINT(size)', defaultSize: 255 },
       { value: 'float', text: 'FLOAT(p)', defaultSize: 24 },
-      { value: 'double', text: 'DOUBLE(size, d)', defaultSize: 25, defaultD: 0 },
-      { value: 'decimal', text: 'DECIMAL(size, d)', defaultSize: 10, defaultD: 0 },
+      { value: 'double', text: 'DOUBLE(size, d)', defaultSize: 25, defaultD: 4 },
+      { value: 'decimal', text: 'DECIMAL(size, d)', defaultSize: 10, defaultD: 4 },
       { value: 'date', text: 'DATE' },
       { value: 'datetime', text: 'DATETIME(fsp)' },
       { value: 'timestamp', text: 'TIMESTAMP(fsp)' },