diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index dd6bca96..d213a927 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -16,6 +16,7 @@
 
 add_subdirectory(lib)
 add_subdirectory(cmd)
+add_subdirectory(gui)
 
 if ((NOT ${CMAKE_SYSTEM_NAME} MATCHES "IRIX") AND (NOT ${DISABLE_TESTS}))
 	add_subdirectory(test)