diff --git a/3rdparty/tbb/CMakeLists.txt b/3rdparty/tbb/CMakeLists.txt
index d460837f8..4e510ffa3 100644
--- a/3rdparty/tbb/CMakeLists.txt
+++ b/3rdparty/tbb/CMakeLists.txt
@@ -82,12 +82,8 @@ endif()
 set(tbb_tarball "${CMAKE_CURRENT_SOURCE_DIR}/${tbb_ver}_src.tgz")
 set(tbb_src_dir "${CMAKE_CURRENT_BINARY_DIR}/${tbb_ver}")
 
-macro(getMD5 filename varname)
-  file(MD5 "${filename}" ${varname})
-endmacro()
-
 if(EXISTS "${tbb_tarball}")
-  getMD5("${tbb_tarball}" tbb_local_md5)
+  file(MD5 "${tbb_tarball}" tbb_local_md5)
   if(NOT tbb_local_md5 STREQUAL tbb_md5)
     message(WARNING "Local copy of TBB source tarball has invalid MD5 hash: ${tbb_local_md5} (expected: ${tbb_md5})")
     file(REMOVE "${tbb_tarball}")
@@ -103,7 +99,7 @@ if(NOT EXISTS "${tbb_tarball}")
   if(NOT __statvar EQUAL 0)
     message(FATAL_ERROR "Failed to download TBB sources: ${tbb_url}")
   endif()
-  getMD5("${tbb_tarball}" tbb_local_md5)
+  file(MD5 "${tbb_tarball}" tbb_local_md5)
   if(NOT tbb_local_md5 STREQUAL tbb_md5)
     file(REMOVE "${tbb_tarball}")
     message(FATAL_ERROR "Downloaded TBB source tarball has invalid MD5 hash: ${tbb_local_md5} (expected: ${tbb_md5})")