diff --git a/modules/CMakeLists.txt b/modules/CMakeLists.txt
index 73b882d..9214617 100644
--- a/modules/CMakeLists.txt
+++ b/modules/CMakeLists.txt
@@ -1,8 +1,11 @@
 # Allow exceptions by removing restricting flag.
 if ( ROSA_COMPILER_IS_GCC_COMPATIBLE )
   remove("-fno-exceptions" CMAKE_CXX_FLAGS)
   remove("-fno-rtti" CMAKE_CXX_FLAGS)
 endif()
 
+execute_process(COMMAND git submodule update --init -- cxxopts
+  WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
+
 # Add the different subdirectories
 ADDALLSUBDIRS()