diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4b321521..1fe82483 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -135,7 +135,7 @@ if(CLI11_SINGLE_FILE)
     target_include_directories(CLI11_SINGLE INTERFACE "${CMAKE_CURRENT_BINARY_DIR}/include/")
 endif()
 
-option(CLI11_SINGLE_FILE_TESTS "Duplicate all the tests for a single file build" OFF)
+cmake_dependent_option(CLI11_SINGLE_FILE_TESTS "Duplicate all the tests for a single file build" OFF "CLI11_SINGLE_FILE" OFF)
 
 cmake_dependent_option(CLI11_TESTING "Build the tests and add them" ON "CUR_PROJ" OFF)
 if(CLI11_TESTING)