diff --git a/cmake/cpp.cmake b/cmake/cpp.cmake
index 18a3485656..334f925d89 100644
--- a/cmake/cpp.cmake
+++ b/cmake/cpp.cmake
@@ -302,7 +302,7 @@ add_library(${PROJECT_NAME}::proto ALIAS ${PROJECT_NAME}_proto)
 target_sources(${PROJECT_NAME} PRIVATE $<TARGET_OBJECTS:${PROJECT_NAME}::proto>)
 add_dependencies(${PROJECT_NAME} ${PROJECT_NAME}::proto)
 
-foreach(SUBPROJECT
+foreach(SUBPROJECT IN ITEMS
     algorithms base bop constraint_solver data glop graph linear_solver lp_data
     port sat util)
   add_subdirectory(ortools/${SUBPROJECT})
diff --git a/cmake/dotnet.cmake b/cmake/dotnet.cmake
index f19ed23feb..04f20ce614 100644
--- a/cmake/dotnet.cmake
+++ b/cmake/dotnet.cmake
@@ -61,7 +61,7 @@ if(USE_COINOR)
 endif()
 list(APPEND CMAKE_SWIG_FLAGS ${FLAGS} "-I${PROJECT_SOURCE_DIR}")
 
-foreach(SUBPROJECT constraint_solver linear_solver sat graph algorithms util)
+foreach(SUBPROJECT IN ITEMS algorithms graph linear_solver constraint_solver sat util)
   add_subdirectory(ortools/${SUBPROJECT}/csharp)
 endforeach()
 
diff --git a/cmake/python.cmake b/cmake/python.cmake
index 476b74c7da..198da72d2b 100644
--- a/cmake/python.cmake
+++ b/cmake/python.cmake
@@ -78,7 +78,7 @@ if(USE_COINOR)
 endif()
 list(APPEND CMAKE_SWIG_FLAGS ${FLAGS} "-I${PROJECT_SOURCE_DIR}")
 
-foreach(SUBPROJECT constraint_solver linear_solver sat graph algorithms data util)
+foreach(SUBPROJECT IN ITEMS algorithms graph linear_solver constraint_solver sat data util)
   add_subdirectory(ortools/${SUBPROJECT}/python)
 endforeach()