diff --git a/CMakeLists.txt b/CMakeLists.txt
index 12ff0d2..eb5104d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -85,7 +85,7 @@ add_definitions ( -DSUPPORT_ASIAN_ENCODINGS=1 )
 add_definitions ( -DSUPPORT_ACCESSIBILITY_CHECKS=1 )
 add_definitions ( -DLIBTIDY_VERSION="${LIBTIDY_VERSION}" )
 add_definitions ( -DRELEASE_DATE="${tidy_YEAR}/${tidy_MONTH}/${tidy_DAY}" )
-### add_definitions ( -DRC_NUMBER="D231" )
+add_definitions ( -DRC_NUMBER="EXP1" )
 
 # Issue #188 - Support user items in platform.h
 if (TIDY_CONFIG_FILE)