diff --git a/code/CMakeLists.txt b/code/CMakeLists.txt
index fd3b1cb88..a69d1626f 100644
--- a/code/CMakeLists.txt
+++ b/code/CMakeLists.txt
@@ -1243,7 +1243,6 @@ IF (ASSIMP_WARNINGS_AS_ERRORS)
         -Wno-undefined-reinterpret-cast
         -Wno-shift-sign-overflow
         -Wno-deprecated-copy-with-user-provided-dtor
-        -Wno-deprecated-copy-with-dtor
         -Wno-deprecated
         -Wno-format-nonliteral
         -Wno-format-non-iso