diff --git a/mimic-iii/buildmimic/mysql/1-define.sql b/mimic-iii/buildmimic/mysql/1-define.sql
index d83ab4b4c..054d659d3 100644
--- a/mimic-iii/buildmimic/mysql/1-define.sql
+++ b/mimic-iii/buildmimic/mysql/1-define.sql
@@ -179,7 +179,7 @@ CREATE TABLE CHARTEVENTS (	-- rows=263201375
    STORETIME DATETIME,
    CGID SMALLINT UNSIGNED,
    VALUE TEXT,	-- max=91
-   VALUENUM DECIMAL(22, 10),
+   VALUENUM DECIMAL(30, 23),
    VALUEUOM VARCHAR(50),	-- max=17
    WARNING TINYINT UNSIGNED,
    ERROR TINYINT UNSIGNED,