diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 10771d180fd..7e81ae88e52 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -29,7 +29,7 @@ endif()
 
 configure_file(CTestCustom.cmake.in ${PROJECT_BINARY_DIR}/CTestCustom.cmake)
 
-file(TO_CMAKE_PATH "${PROJECT_SOURCE_DIR}/valgrind.supp" MEMORYCHECK_SUPPRESSIONS_FILE_TMP)
+file(TO_CMAKE_PATH "${PROJECT_SOURCE_DIR}/valgrind.supp" MEMORYCHECK_SUPPRESSIONS_FILE_TMP
 set(MEMORYCHECK_SUPPRESSIONS_FILE ${MEMORYCHECK_SUPPRESSIONS_FILE_TMP} CACHE FILEPATH "Valgrind suppresions file")
 
 # Check if /etc/hosts file has been modified to add dummy host test subjects