diff --git a/runtime/CMakeLists.txt b/runtime/CMakeLists.txt
index 8d1401e02da703769c8b822596251edd5cd70097..8542c2b1d6fdb893ef2ee6716661e67684bc911b 100644
--- a/runtime/CMakeLists.txt
+++ b/runtime/CMakeLists.txt
@@ -27,9 +27,12 @@ endif()
 set(ECMA_GEN_DIR "${CMAKE_CURRENT_BINARY_DIR}/generated")
 file(MAKE_DIRECTORY "${ECMA_GEN_DIR}")
 
-add_custom_target(init_icu_gen_cpp 
-                  COMMAND ${ECMA_SRC_DIR}/templates/substitute_icu_path.rb ${ECMA_SRC_DIR}/templates/init_icu_gen.cpp.erb ${ECMA_GEN_DIR}/init_icu_gen.cpp ${PANDA_THIRD_PARTY_SOURCES_DIR}
-                  DEPENDS ${ECMA_SRC_DIR}/templates/init_icu_gen.cpp.erb)
+add_custom_command(OUTPUT ${ECMA_GEN_DIR}/init_icu_gen.cpp
+                   COMMAND ${ECMA_SRC_DIR}/templates/substitute_icu_path.rb ${ECMA_SRC_DIR}/templates/init_icu_gen.cpp.erb ${ECMA_GEN_DIR}/init_icu_gen.cpp ${PANDA_THIRD_PARTY_SOURCES_DIR}
+                   DEPENDS ${ECMA_SRC_DIR}/templates/init_icu_gen.cpp.erb)
+
+add_custom_target(init_icu_gen_cpp
+                  DEPENDS ${ECMA_GEN_DIR}/init_icu_gen.cpp)
 
 add_dependencies(arkruntime_static init_icu_gen_cpp)