diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2c49942..6317884 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -114,7 +114,7 @@ file(COPY ${PROJECT_SOURCE_DIR}/scripts/runtests.sh
 if (LOGGER_PATH)
     set(LOGGER_CC_FILE "${LOGGER_PATH}/logger.cc")
     set(LOGGER_HEADER_FILE "${LOGGER_PATH}/logger.h")
-else ()
+elseif (NOT LOGGER_CC_FILE)
     set(LOGGER_CC_FILE "${ROOT_SRC}/logger.cc")
     set(LOGGER_HEADER_FILE "${ROOT_SRC}/logger.h")
 endif ()