diff --git a/CMakeLists.txt b/CMakeLists.txt
index e690f7f7234..1894f720410 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -181,7 +181,7 @@ endif()
 add_subdirectory( externals )
 
 if ("${CORE_SYMBOL_NAME}" STREQUAL "")
-  set( CORE_SYMBOL_NAME "SYS" )
+  set( CORE_SYMBOL_NAME "EOS" )
 endif()
 string(TOUPPER ${CORE_SYMBOL_NAME} CORE_SYMBOL_NAME)