diff --git a/CMakeLists.txt b/CMakeLists.txt
index 38488cb..46ef184 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -18,8 +18,8 @@ endif()
 
 # Note: globbing sources is considered bad practice as CMake won't detect new files automatically.
 # Remember to always invoke cmake after changing files, or explicitly mention them here.
-FILE(GLOB_RECURSE headers "${CMAKE_CURRENT_SOURCE_DIR}/include/*.h")
-FILE(GLOB_RECURSE sources "${CMAKE_CURRENT_SOURCE_DIR}/source/*.cpp")
+FILE(GLOB_RECURSE headers CONFIGURE_DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/include/*.h")
+FILE(GLOB_RECURSE sources CONFIGURE_DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/source/*.cpp")
 
 # ---- Add dependencies via CPM ----
 # see https://github.com/TheLartians/CPM.cmake for more info
diff --git a/standalone/CMakeLists.txt b/standalone/CMakeLists.txt
index 4ae4c3b..e8ffc86 100644
--- a/standalone/CMakeLists.txt
+++ b/standalone/CMakeLists.txt
@@ -24,7 +24,7 @@ CPMAddPackage(
 
 # ---- Create standalone executable ----
 
-file(GLOB sources ${CMAKE_CURRENT_SOURCE_DIR}/source/*.cpp)
+file(GLOB sources CONFIGURE_DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/source/*.cpp)
 
 add_executable(GreeterStandalone ${sources})
 
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index d824879..e34ca2a 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -37,7 +37,7 @@ CPMAddPackage(
 
 # ---- Create binary ----
 
-file(GLOB sources ${CMAKE_CURRENT_SOURCE_DIR}/source/*.cpp)
+file(GLOB sources CONFIGURE_DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/source/*.cpp)
 add_executable(GreeterTests ${sources})
 target_link_libraries(GreeterTests doctest Greeter)