diff --git a/build/cmake/CMakeModules/AddZstdCompilationFlags.cmake b/build/cmake/CMakeModules/AddZstdCompilationFlags.cmake
index 186819885..623897170 100644
--- a/build/cmake/CMakeModules/AddZstdCompilationFlags.cmake
+++ b/build/cmake/CMakeModules/AddZstdCompilationFlags.cmake
@@ -60,7 +60,6 @@ macro(ADD_ZSTD_COMPILATION_FLAGS)
              CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
         if( ${flag_var} )
             separate_arguments(${flag_var})
-            list(REMOVE_DUPLICATES ${flag_var})
             string(REPLACE ";" " " ${flag_var} "${${flag_var}}")
         endif()
     endforeach ()