diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1e55a03b2..d1c61b9a3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,7 +4,7 @@ cmake_minimum_required(VERSION 3.13)
 project(S2E
   LANGUAGES CXX
   DESCRIPTION "S2E: Spacecraft Simulation Environment"
-  VERSION 7.2.6
+  VERSION 7.2.7
 )
 
 # build config
diff --git a/data/sample/initialize_files/sample_satellite.ini b/data/sample/initialize_files/sample_satellite.ini
index 69dcd5210..62991f053 100644
--- a/data/sample/initialize_files/sample_satellite.ini
+++ b/data/sample/initialize_files/sample_satellite.ini
@@ -92,7 +92,7 @@ epoch_jday = 2.458940966402607e6
 tle1=1 25544U 98067A   20076.51604214  .00016717  00000-0  10270-3 0  9005
 tle2=2 25544  51.6412  86.9962 0006063  30.9353 329.2153 15.49228202 17647
 // World Geodetic System
-wgs = 2 // 0: wgs72old, 1: wgs72, 2: wgs84
+wgs_setting = 2 // 0: wgs72old, 1: wgs72, 2: wgs84
 //////////////////////////////////////////////////////////////////////////
 
 // Settings for relative orbit propagation ////////////////////////////