diff --git a/scripts/1_cleanweightdata.do b/scripts/1_cleanweightdata.do
index ecf869c..2bf0f1f 100644
--- a/scripts/1_cleanweightdata.do
+++ b/scripts/1_cleanweightdata.do
@@ -33,7 +33,7 @@ drop data4 data5 data6 data7
 
 * Generates practice ID from patid
 tostring patid, generate(str_patid)
-gen str_pracid = substr(str_patid,-3,3)
+gen str_pracid = substr(str_patid,-5,5)
 destring str_pracid, gen(pracid)
 drop str_pracid str_patid