diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2f2828d49..3714e8c87 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -19,6 +19,8 @@ if(POLICY CMP0157)
   endif()
 endif()
 
+set(SWT_SOURCE_ROOT_DIR ${CMAKE_SOURCE_DIR})
+
 project(SwiftTesting
   LANGUAGES CXX Swift)
 
diff --git a/Sources/TestingMacros/CMakeLists.txt b/Sources/TestingMacros/CMakeLists.txt
index 9de696920..458bd4170 100644
--- a/Sources/TestingMacros/CMakeLists.txt
+++ b/Sources/TestingMacros/CMakeLists.txt
@@ -12,6 +12,8 @@ if(POLICY CMP0157)
   cmake_policy(SET CMP0157 NEW)
 endif()
 
+set(SWT_SOURCE_ROOT_DIR ${CMAKE_SOURCE_DIR}/../..)
+
 project(TestingMacros
   LANGUAGES Swift)
 
diff --git a/cmake/modules/shared/CompilerSettings.cmake b/cmake/modules/shared/CompilerSettings.cmake
index df3bb826a..e5a4fcbf6 100644
--- a/cmake/modules/shared/CompilerSettings.cmake
+++ b/cmake/modules/shared/CompilerSettings.cmake
@@ -43,7 +43,7 @@ if(CMAKE_SYSTEM_NAME STREQUAL "WASI")
   add_compile_definitions("SWT_NO_PIPES")
 endif()
 
-file(STRINGS "../VERSION.txt" SWT_TESTING_LIBRARY_VERSION LIMIT_COUNT 1)
+file(STRINGS "${SWT_SOURCE_ROOT_DIR}/VERSION.txt" SWT_TESTING_LIBRARY_VERSION LIMIT_COUNT 1)
 if(SWT_TESTING_LIBRARY_VERSION)
   message(STATUS "Swift Testing version: ${SWT_TESTING_LIBRARY_VERSION}")
   add_compile_definitions("$<$<COMPILE_LANGUAGE:CXX>:SWT_TESTING_LIBRARY_VERSION=\"${SWT_TESTING_LIBRARY_VERSION}\">")