diff --git a/cmake/modules/Macros.cmake b/cmake/modules/Macros.cmake
index b6371568..adb34b51 100644
--- a/cmake/modules/Macros.cmake
+++ b/cmake/modules/Macros.cmake
@@ -1,15 +1,12 @@
 
 MACRO(TIMESTAMP RESULT)
-    IF(WIN32)
+    if (CMAKE_HOST_SYSTEM_NAME STREQUAL "Windows")
         EXECUTE_PROCESS(COMMAND "cmd" " /C date /T" OUTPUT_VARIABLE DATE)
         string(REGEX REPLACE "(..)[/.](..)[/.](....).*" "\\3\\2\\1" DATE ${DATE})
         EXECUTE_PROCESS(COMMAND "cmd" " /C time /T" OUTPUT_VARIABLE TIME)
         string(REGEX REPLACE "(..):(..)" "\\1\\2" TIME ${TIME})
         set (${RESULT} "${DATE}${TIME}")
-    ELSEIF(UNIX)
+    else ()
         EXECUTE_PROCESS(COMMAND "date" "+%Y%m%d%H%M" OUTPUT_VARIABLE ${RESULT})
-    ELSE()
-        MESSAGE(SEND_ERROR "date not implemented")
-        SET(${RESULT} 000000000000)
-    ENDIF()
+    endif ()
 ENDMACRO()